The total resistance in the circuit is 20 ohms, so the current is 2A. When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. 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. 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. Find the value of the resistance of the resistor. 18 . Solution: We have potential difference (V) = 12V. So the answer is 30 volts. Answer: a) Resistance of a conductor is the property of a conductor. When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. A battery of 6V is connected in series with resisters of 0.1 ohm , â¦ 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. 6. \nonumber\] Note that the sum of the potential drops across each resistor is equal to the voltage supplied by the battery. When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Question 9. A 2A current flowing through a 15 ohm resistor produces 30V. A battery is connected across a series combination of two identical resistors. Q 8: When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. If the external resistance is then changed to R2 = 7.00 ohms, what is â¦ When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. 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. A battery has an emf of 9.00 V and an unknown internal resistance. This property helps conductor in opposing the flow of current through it. Find the value of the resistance of the resistor. 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. Q.8:- When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. 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 . Answer. Given: V= 12 volts, I = 2.5 mA = 2.5 x 10-3 A Resistance, R = ? â´ Resistance = = = 4.8 x 10 3 Î©. 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 Î© (b) 400 Î© (c) 0.4 Î© (d) 40Î© 7. A battery provides a voltage of 10.0 V and has unknown internal resistance . 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. Ans:We have potential difference (V) = 12V Electric current (I)=2.5 mA= 2.4×10-3 When the battery is connected across a 20.0 Î© load resistor, the terminal voltage of the battery 8.50 V. Find the value of the resistance of the resister: (a) 5000 Ω (b) 800 Ω (c) 0.8 Ω (d) none of these 10. Calculate the value of the resistance of the resistor. Find the value of the resistance of the resistor. Find the value of the resistance of the resister: (a) 5000 Î© (b) 400 Î© (c) 0.8 Î© (d) none of these 19. Identify the circuit in which the electrical components have been properly connected. 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