Fill ups
The current flowing through a conductor is directly proportional to the applied…………across the ends of the conductor. Provided the physical conditions remains the same.

Prove that the current density of a metallic conductor is directly proportional to the drift velocity of electrons.

Prove that electric current density of a metallic conductor is directly proportional to the drift speed of electrons?

The magnetic field at a point due to a current carrying conductor is directly proportional to

The current flowing through a conductor and the potential difference across it two ends are as per readings of the ammeter and voltmeter shown below. The resistance of the conductor would be

State the formula correlating the electric current flowing in a conductor and in voltage applied across it also, show this relationship by drawing a graph. What would be the resistance of a conductor if the current flowing throught it is 0.35 ampere when the potential difference across it is 1.4 volt.

Fill ups If current passes through a resistor is doubled, the rate of consumption of energy by the resistor becomes ……………times, provided the resistance remains unchanged?

The current that flows through a conductor of length 10 cm bent into the form of an arc of circle of radius 2 cm to produce a magnetic field of 0.1 oersted at its centre is

When a circuit element X is conneted across a.c. sourceof emf 220sqrt2V , a current sqrt2 A flows through it and this current is in phase with applied voltage. When another element Y is connected across same a.c. source, the same current flows in the circuit, but it leads the voltages by pi//2. Find current that flows in the circuit when series combination of X and Y is connected acorss same a.c. voltage.