A wire in N-S direction is dropped freely. Will any potential difference be induced across its ends?

If the wire kept in E-W direction be dropped freely, then is there any potential difference induced across it ends?

A metallic rod held horizontally along east-west direction is allowed to fall under gravity. Will there be any e.m.f. induced across its end?

The displacement current flows in the dielectric of a capacitor, when the potential difference across its plates

A wire with an area of cross-section as 1 mm2 has a resistance of 10Q, when a potential difference across its ends is 8V. Calculate the drift velocity of electrons. Given,number density of electrons in wire as 8 xx 10^20 electrons per cubic meter.

A wire carries a current of 1.2 A when a potential difference of 1.8 V is applied across it. What is its conductance? If the wire is of length 3 m and area of cross-section 5.4 xx 10^-6 m^2 calculate its conductivity.

Two wire A & B are of the same metal and are of same length have area of cross section in the ratio of 2:1 If the same potential difference is applied across each wire. What will be the ratio of the current flowing through the wires A & B ?

On increasing the current drawn from a cell, the potential difference across its terminals is lowered why?

Derive the expression for the heat produced due to a current 'I' flowing for a time interval 't' through a resistor 'R' having a potential difference 'V' across its ends. With which name is this relation known ?

Name a device that help to maintain a potential difference across a conductor?