Simple Circuit

Q. In the circuit shown in figure, the voltmeter reading would be

1. 2 volt
2. Zero
3. 0.5 volt
4. 1 volt

Q. In the given circuit, the potential of the point E is

1. Zero
2. -8V
3. - 4/3 V
4. 4/3 V

Q. A current of $6\text{A}$ enters one corner $P$ of an equilateral triangle $△PQR$ having $3$ wires of resistance $21\Omega$ each and leaves by the corner $R$. The currents $i_1$ in ampere is

Q. In the circuit shown in figure, find the current through the branch BD

1. 5 A
2. 0 A
3. 3 A
4. 4 A

Q. A current of two amperes is flowing through a cell of e.m.f. 5 volts and internal resistance 0.5 ohm from negative to positive electrode. If the potential of negative electrode is 10V, the potential of positive electrode will be

1. 16 V
2. 5 V
3. 14 V
4. 15 V

Q. What is the direction of current flow in this circuit?

1. Clockwise
2. Anticlockwise
3. Into the plane of the circuit
4. Out of the plane of the circuit.

Q. Two resistances $R_1$ and $R_2$ are joined as shown in the figure to two batteries of e.m.f. $E_1$and $E_2$. If $E_2$is short-circuited, the current through $R_1$ is

1. E₁/R₁
2. E₂/R₁
3. E₂/R₂
4. E₁/(R₂ + R₁)

Q. Consider the circuit shown in the figure. The current i₃ is equal to

1. 5 amp
2. 3 amp
3. – 3 amp
4. $-\frac{5}{6}$ amp

Q. If in the given figure i = 0.25 amp, then the value R will be

1. $48\Omega$
2. $12\Omega$
3. $120\Omega$
4. $42\Omega$

Q. In any schematic diagram of a circuit, the connecting wires have no resistance. All the resistance is assumed to be concentrated on the marked resistors of the circuit.

1. False
2. True