10 Questions
| Total Attempts: 788

Questions and Answers

- 1.If a number of resistors are connected in parallel, then the reciprocal of total resistance is equal to
- A.
Sum of individual resistances

- B.
Sum of the reciprocal of individual resistances

- C.
Reciprocal of the sum of individual resistances

- D.
All of these

- 2.The unit of electrical energy is/are
- A.
Joules

- B.
Watt - sec

- C.
Kilowatt - hour

- D.
All of these

- 3.If a current of 5A flows through a resistor of 12 ohms then the power developed and the energy dissipated in 2 minutes is
- A.
300 W, 36000 J

- B.
360 W, 30000 J

- C.
380 W, 35000 J

- D.
380 W, 36000 J

- 4.According to Kirchoff’s voltage law,
- A.
The algebraic sum of all the e.m.f’s in the circuit is zero

- B.
Algebraic sum all the voltage drops in the circuit is zero

- C.
Algebraic sum of e.m.f’s plus algebraic sum of voltage drops is equal to zero

- D.
All of these

- 5.True or False? In a series circuit, the amount of current is the same through any component in the circuit
- A.
True

- B.
False

- 6.How many paths do the electrons have to flow in a series circuit?
- A.
0

- B.
1

- C.
2

- D.
Many

- 7.The loads in a series circuit must __________ the available voltage.
- A.
Fuel

- B.
Power

- C.
Share

- D.
None of the above

- 8.In any network of wires carrying currents, the algebraic sum of all currents meeting at a point is equal to
- A.
Sum of all the currents

- B.
Zero

- C.
Sum of outgoing current

- D.
Sum of incoming current

- 9.The specific resistance of a material is
- A.
Directly proportional to the both area of cross section and length of material

- B.
Directly proportional to the area of cross section and inversely proportional to the length of material

- C.
Inversely proportional to the area of cross section and directly proportional to the length of material

- D.
Inversely proportional to the both area of cross section and length of material

- 10.There are three main rules that apply to the series circuit. Which of the following is one of the rules?
- A.
The sum of the potential drops equals the potential rise of the source

- B.
The current is the same everywhere in the series circuit

- C.
The total resistance of the circuit is equal to the sum of the individual resistances

- D.
All of the above