Physics M.C.Q (1 Marks)

The SI unit of resistivity is:

In the given figure, if the Wheatstone bridge is in balanced condition, then the value of resistance 'S' will be

Electron and proton beams are travelling parallel to each other in the same direction. There will be ___________ between them.

If current flowing through a conductor is doubled then the heat produced in it is:

Copper and germanium are cooled from room temperature to 30 K. In this process, the resistance:

Resistance of the metal increases with temperature because:

When an ideal battery is joined with an external resistance in an electric circuit, a current i flows. through it. If another battery like this battery is joined in parallel with this battery, then the magnitude of current flowing in the battery will become:

In a sensitive Wheatstone bridge, current in the galvanometer in the state of slight deflection from the position of balance is:

Two similar cells, whether joined in series or in parallel, same current flows in external resistance of 2. The internal resistance of each cell is:

Kirchhoff's second law in any closed circuit represents:

Kirchhoff's current rule depends on:

If resistance of a conductor is reduced to half and magnitude of current is doubled, then produced heat:

I ampere current flows in a conducting wire for t seconds. If resistance of the wire is R ohms, then magnitude of produced heat in joules according to Joule's law is:

Which of the following statement is correct in accordance with Kirchhoff's second law?

Heat of 80 J is produced in a conductor on passing a current of 2 A for 10 seconds. The resistance of conductor will be:

According to Kirchhoff's law, at any junction in an electric circuit:

In interchanging the corresponding positions of battery and galvanometer in a Wheatstone bridge, the balanced position:

If length of a conductor is doubled and cross-section is made half, then the specific resistance of the substance of changed wire will become:

Cells are joined in parallel. The internal resistance of the cell is:

Two wires of same substance are given. Length and diameter of first wire are double that of the other. The resistance of first is __________ of other.

Resistivity of a wire depends on:

Internal resistance of the cell is:

Two resistance A and B are made up of same substance. Length and radius of wire A is twice that of B. Ratio of resistances of A and B are:

Second law of Kirchhoff depends on the principle of conservation of:

Magnitude of pursuit velocity does not depend on :

The dependence of drift velocity on applied electric field E is:

A conducting resistor is joined with a battery. If the temperature of the conductor is changed with the cooling process, then the magnitude of current flowing:

Resistance of the conductor depends upon:

Product of resistivity and conductivity of any conductor depends on:

10 C charge is passing through any point in electric circuit in 0.5 second. The magnitude of electric current in the circuit in amperes is: