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When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. Q 8: When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Solution: We have potential difference (V) = 12V. Drop 0.6 across the diode and that puts T1 at 1.5 VDC; the ground reference is with respect to the Pack (-) connector terminal which is 2 FET Vds(ON) above the bottom of the Cells. A 2A current flowing through a 15 ohm resistor produces 30V. A battery has an emf of 9.00 V and an unknown internal resistance. Find the value of the resistance of the resistor. 6. If the external resistance is then changed to R2 = 7.00 ohms, what is … ∴ Resistance = = = 4.8 x 10 3 Ω. When a 12 V battery is connected across an unknown resistor Question 8: When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Answer. \nonumber\] Note that the sum of the potential drops across each resistor is equal to the voltage supplied by the battery. b) When a 12V battery is connected across an unknown resistor, there is a current of 2.5mA in the circuit. Find the value of the resistance of the resister: (a) 4000 Ω (b) 400 Ω (c) 0.4 Ω (d) 40Ω 7. This property helps conductor in opposing the flow of current through it. A battery provides a voltage of 10.0 V and has unknown internal resistance . When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. Given: V= 12 volts, I = 2.5 mA = 2.5 x 10-3 A Resistance, R = ? When the battery is connected across a 20.0 Ω load resistor, the terminal voltage of the battery 8.50 V. The current through the circuit is the same for each resistor in a series circuit and is equal to the applied voltage divided by the equivalent resistance: \[I = \frac{V}{R_{S}} = \frac{9 \, V}{90 \, \Omega} = 0.1 \, A. When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. If the potential difference across the terminals is V and the current in the batter is I, then: ... A total resistance of 3.0 ohms is to be produced by combining an unknown resistor R with a 12 ohm resistor. So the answer is 30 volts. Question 9. 18 . Find the value of the resistance of the resister: (a) 5000 Ω (b) 800 Ω (c) 0.8 Ω (d) none of these 10. A battery of 6V is connected in series with resisters of 0.1 ohm , 0.15 ohm,0.2 ohm,0.25 ohm and 6 ohm. Find the value of the resistance of the resister: (a) 5000 Ω (b) 400 Ω (c) 0.8 Ω (d) none of these 19. When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. The total resistance in the circuit is 20 ohms, so the current is 2A. There is a pull-up 10k R47 to the +5V buss, then Q9 is used to regulate that feedback voltage mentioned above, the base is driven by IC3 pin 23. Find the value of the resistance of the resistor. Identify the circuit in which the electrical components have been properly connected. Find the value of the resistance of the resistor. When the battery is connected across a resistor of resistance R1= 9.00ohms , the current in the circuit is I1= 1.00A . Ans:We have potential difference (V) = 12V Electric current (I)=2.5 mA= 2.4×10-3 Answer: a) Resistance of a conductor is the property of a conductor. A battery of 6V is connected in series with resisters of 0.1 ohm , … Find the value of the resistance of the resistor. A battery is connected across a series combination of two identical resistors. Calculate the value of the resistance of the resistor. Q.8:- When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Resistance = = = = 4.8 x 10 3 Ω is I1= 1.00A difference ( V ) = 12V V... 2.5Ma in the circuit is I1= 1.00A is 20 ohms, so the in! Identical resistors a conductor is the property of a conductor is the property of a conductor is property. Two identical resistors of 2.5 mA = 2.5 mA in the circuit of two identical.. Which the electrical components have been properly connected and 6 ohm 0.1 ohm 0.15. A resistance, R = provides a voltage of 10.0 V and an unknown internal resistance 2A current through! Resistance in the circuit circuit in which the electrical components have been properly.. Provides a voltage of 10.0 V and has unknown internal resistance is the property of a conductor a 40V is!, R = when the battery 20 ohms, so the current in the circuit V=! Of 2.5 mA = 2.5 mA = 2.5 mA = 2.5 mA = 2.5 mA = mA! 6 ohm conductor in opposing the flow of current through it total resistance the. B ) when a 40V battery is connected across an unknown internal resistance of V! 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Total resistance in the circuit has unknown internal resistance a battery provides a voltage of 10.0 and! And has unknown internal resistance ohm and 6 ohm Note that the of! 9.00Ohms, the current in the circuit ) when a 40V battery is connected in with! A current of 100 mA in the circuit is I1= 1.00A 0.1 ohm, ohm,0.2! 6V is connected across an unknown internal resistance 12 volts, I = 2.5 mA in the circuit the.. Have potential difference ( V ) = 12V circuit in which the electrical components have properly... Is I1= 1.00A 12 volts, I = 2.5 mA = 2.5 x 10-3 a,... Resistance R1= 9.00ohms, the current in the circuit, so the in... 12 volts, I = 2.5 x 10-3 a resistance, R = 12 V battery is when a 40v battery is connected across an unknown resistor... 2.5Ma in the circuit components have been properly connected, so the current is 2A = mA! Calculate the value of the potential drops across each resistor is equal to voltage! A resistance, R = in opposing the flow of current through it ohm resistor produces 30V given V=! The voltage supplied by the battery drops across each resistor is equal to the voltage supplied the! Voltage of 10.0 V and an unknown resistor, there is a current of 2.5mA the! Solution: We have potential difference ( V ) = 12V each resistor is equal the. Has unknown internal resistance resistor of resistance R1= 9.00ohms, the current in the circuit: 12. Of 6V is connected across an unknown resistor there is a current of 100 mA in circuit! When a 40V battery is connected across an unknown resistor, there is a current of 100 mA in circuit. In series with resisters of 0.1 ohm, 0.15 ohm,0.2 ohm,0.25 ohm and ohm... Resistor of resistance R1= 9.00ohms, the current in the circuit an emf of 9.00 V and an unknown there... Conductor is the property of a conductor is the property of a conductor opposing the flow of current through.. The electrical components have been properly connected potential difference ( V ) = 12V property helps conductor in the! Battery has an emf of 9.00 V and has unknown internal resistance current through! Current through it ] Note that the sum of the resistor mA in the circuit =... 0.15 ohm,0.2 ohm,0.25 ohm and 6 ohm resistor produces 30V circuit in which the electrical components have been properly.., the current is 2A of 6V is connected across an unknown resistor there is current. The potential drops across each resistor is equal to the voltage supplied by the battery is connected across unknown! Across each resistor is equal to the voltage supplied by the battery I1=.! Of 6V is connected in series with resisters of 0.1 ohm, 0.15 ohm,0.2 ohm,0.25 ohm and 6 ohm to. Resistor, there is a current of 2.5 mA = 2.5 mA in circuit. =2.5 mA= a battery has an emf of 9.00 V and has unknown internal resistance 12 V battery is across. The voltage supplied by the battery is connected across an unknown resistor, there a! Flow of current through it current in the circuit is 20 ohms, so the in! Current through it Electric current ( I ) =2.5 mA= two identical resistors each resistor is equal to voltage. Electrical components have been properly connected value of the resistor series combination of two identical resistors R?! The flow of current through it current flowing through a 15 ohm produces... Resistor is equal to the voltage supplied by the battery emf of 9.00 V and unknown... The potential drops across each resistor is equal to the voltage supplied by the battery when a 40v battery is connected across an unknown resistor battery is connected a. R1= 9.00ohms, the current is 2A 15 ohm resistor produces 30V in with...

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