As the temperature of a metallic resistor is increased, the product of its resistivity and conductivity:
1. increases
2. decreases
3. remains constant
4. may increase or decrease

In an electric circuit containing a battery, the charge (assumed positive) inside the battery:

A resistor of resistance \(R\) is connected to an ideal battery. If the value of \(R\) is decreased, the power dissipated in the resistor will:

A current passes through a resistor. Let K₁ and K₂ represent the average kinetic energy of the conduction electrons and the metal ions respectively.

1.   K₁ < K₂

2.   K₁ = K₂

3.   K₁ > K₂

4.   Any of these three may occur

Two resistors \(R\) and \(2R\) are connected in series in an electric circuit. The thermal energy developed in \(R\) and \(2R\) are in the ratio of:
1. \(1:2\)
2. \(2:1\)
3. \(1:4\)
4. \(4:1\)

Two resistances \(R\) and \(2R\) are connected in parallel in an electric circuit. The thermal energy developed in \(R\) and \(2R\) are in the ratio:
1. \(1 : 2\)
2. \(2 : 1\)
3. \(  1 : 4\)
4. \(4 : 1\)

A uniform wire of resistance \(50~\Omega\) \(\) is cut into \(5\) equal parts. These parts are now connected in parallel. The equivalent resistance of the combination is:

Consider the following two statements:

Two non-ideal batteries are connected in series. Consider the following statements:

Two non-ideal batteries are connected in parallel. Consider the following statements: