Home
Class 12
PHYSICS
[" (a) free electrons "],[" (c) free ele...

[" (a) free electrons "],[" (c) free electrons and holes "],[" 6.The current in a circuit with an external resistance of "3.75Omega" is "0.5A" .When a resistance of "1Omega],[" is introduced into the circuit,the current becomes "0.4A" .The emf of the power source is "],[[" (a) "1V," (b) "2V],[" (c) "3V," (d) "4V]]

Promotional Banner

Similar Questions

Explore conceptually related problems

The current in a circuit with an external resistance of 3.75Omega is 2.5A . When a resistance of 1 Omega is introduced into the circuit, the current becomes 0.4 A . The emf of the power source is

The current in a circuit with an external resistance of 3.75Omega is 2.5A . When a resistance of Omega is introduced into the circuit, the current becomes 0.4 A . The emf of the power source is

The current in a circuit with a cell of e.m.f 6 V and internal resistance 0.1 Omega is 2 A. Find the value of the external resistance in it.

The current in a circuit containing a battery connected to 2Omega resistance is 0.9A. When a resistance of 7Omega is connected to the same battery, the current observed in the circuit is 0.3A. Then the internal resistance of the battery.

The current in a circuit containing a battery connected to 2Omega resistance is 0.9A. When a resistance of 7Omega is connected to the same battery, the current observed in the circuit is 0.3A. Then the internal resistance of the battery.

A cell of e.m.f. 2 V and internal resistance 2Omega and an external resistance 18Omega forms closed circuit. The current through the circuit is

In the electric circuit shown each cell has an emf of 2 V and internal resistance of 1Omega . The external resistance is 2Omega . The value of the current is (in A)

The current in a circuit containing a battery connected to 2Omega resistance is 0.9A. When a resistance of 7Omega connected to the same battery, the current observed in the circuit is 0.3 A. Then the internal resistance of te battery is

A resistor is connected to a battery of emf 10 V and internal resistance 0.3 Omega . What is the resistance of the resistor to be inserted in the circuit for the circuit current 1.2A?