Given the resistances of 1Ω, 2Ω, 3Ω, how will we combine them to get an equivalent resistance of (11/3):

1.	1Ω, 2Ω in parallel and the combination in series with 3Ω
2.	3Ω, 2Ω in parallel and the combination in series with 1Ω
3.	1Ω, 2Ω and 3Ω in parallel
4.	1Ω, 2Ω in series and the combination in parallel with 3Ω

The number density of free electrons in a copper conductor is 8.5×10²⁸ m^–3. How long does an electron take to drift from one end of a wire 3.0 m long to its other end? The area of the cross-section of the wire is 2.0×10^–6 m² and it is carrying a current of 3.0 A.

1.\(2.7 \times10^{4}\) s
2.\(3.3 \times10^{4}\) s
3.\(2.0 \times10^{3}\) s
4.\(3.9 \times10^{3}\) s

Six lead-acid type of secondary cells each of emf \(2.0\) V and internal resistance \(0.015~\Omega\) are joined in series to provide a supply to a resistance of \(8.5~\Omega\). What is the current drawn from the supply?
1. \(2.10~\text{A}\)
2. \(1.39~\text{A}\)
3. \(1.71~\text{A}\)
4. \(2.21~\text{A}\)

A secondary cell after long use has an emf of \(1.9\) V and a large internal resistance of \(380~\Omega\). What maximum current can be drawn from the cell?
1. \(0.05~\text{A}\)
2. \(0.005~\text{A}\)
3. \(5.0~\text{A}\)
4. \(0.5~\text{A}\)

The storage battery of a car has an EMF of \(12\) V. If the internal resistance of the battery is \(0.4~\Omega\), what is the maximum current that can be drawn from the battery?

A battery of emf 10 V and internal resistance $3 \Omega$ is connected to a resistor. If the current in the circuit is 0.5 A, what is the terminal voltage of the battery when the circuit is closed?

1. 10 V
2. 8.5 V
3. 1.5 V
4. 7.2 V

Three resistors $1 \Omega , 2 \Omega , and 3 \Omega$ are combined in series.  If the combination is connected to a battery of emf 12 V and negligible internal resistance, the potential drop across $2 \Omega$ resistor is:

1. 2 V
2. 5 V
3. 4 V
4. 6 V

Three resistors $2 \Omega , 4\Omega , and 5 \Omega$ are combined in parallel. If the combination is connected to a battery of emf 20 V and negligible internal resistance, the total current drawn from the battery is:

1. 10 A
2. 17 A
3. 13 A
4. 19 A

At room temperature \((27~^\circ \text{C})\) the resistance of a heating element is \(100~\Omega\). What is the temperature of the element if the resistance is found to be \(117~\Omega\)? 
(Given that the temperature coefficient of the material of the resistor is \(1.70\times 10^{-4}~^{\circ}\text{C}^{-1}\))
1. \(1027~^{\circ}\text{C}\)
2. \(1007~^{\circ}\text{C}\)
3. \(1020~^{\circ}\text{C}\)
4. \(1127~^{\circ}\text{C}\)

A negligibly small current is passed through a wire of length \(15~\text{m}\) and uniform cross-section $\mathrm{}$\(6.0\times10^{-7}\) m², and its resistance is measured to be $\mathrm{}$\(5.0~\Omega.\) What is the resistivity of the material at the temperature of the experiment?