Current Electri...

Calculate the potential difference between, points A and B current flowing in $$10\Omega $$ resistor in the part of the network below:-                                 

A part of circuit with current is shown. The value of $$I $$ is :

In the circuit shown, the current in the $$1\ \Omega$$ resistor is :

The equivalent resistance between points $$A$$ and $$B$$ is

In the circuit shown below, the cell is ideal, with $$emf=2V$$. The resistance of the coil of the galvanometer $$G$$ is $$1 \Omega$$. The steady current through the galvanometer is

If the current in the toroidal solenoid increases uniformly from zero to $$6.0 A$$ in $$3.0\mu s$$.Self inductance of the toroidal solenoid is $$40 \mu H$$. The magnitude of self-induced emf is

In the determination of the internal resistance of a cell using a potentiometer, when the cell is shunted by a resistance $$"R"$$ and connected in the secondary circuit, the balance length is found to be $$L_1$$. On doubling the shunt resistance, the balance length is found to increase to $$L_2$$. The value of the internal resistance is:

In the adjoining figure the equivalent resistance between $$A$$ and $$B$$ is

A horizontal straight conductor of length $$l$$ placed along east-west direction falls under gravity from height $$h$$ at a place where horizontal component of magnetic field is $$H$$ and vertical component of magnetic field is $$V$$. Then :