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Mechanical - 540 UNIT 5 Basic Electricity - MCQ

26)   

What is the symbol of resistance? 

A.
B.
C.
D.
Answer: B
27)   

 Energy consumed = ?

A.
B.
C.
D.
Answer: A
28)   

 In series circuit, the total voltage is...

A.
B.
C.
D.
Answer: B
29)   

Electrical energy is measured in...?

A.
B.
C.
D.
Answer: A
30)   

 Which device stores electrical energy? 

A.
B.
C.
D.
Answer: A
31)   

Which one is a unit of electrical power?

A.
B.
C.
D.
Answer: C
32)   

Conductors have...

A.
B.
C.
D.
Answer: B
33)   

What is the resistance of a wire if V = 10V and I = 2A?

A.
B.
C.
D.
Answer: A
34)   

In an open circuit, current is...

A.
B.
C.
D.
Answer: B
35)   

Which among the following is used as heating element?

A.
B.
C.
D.
Answer: C
36)   

 Unit of electric potential is...?

A.
B.
C.
D.
Answer: B
37)   

Which device is used to break the circuit?

A.
B.
C.
D.
Answer: B
38)   

 Magnetic effect of electric current was discovered by...?

A.
B.
C.
D.
Answer: C
39)   

The speed of current in a conductor is...

A.
B.
C.
D.
Answer: B
40)   

Which type of current is supplied to homes? 

A.
B.
C.
D.
Answer: C
41)   

What type of connection is used in home wiring for lights and fans?

A.
B.
C.
D.
Answer: B
42)   

Who discovered electromagnetic induction?

A.
B.
C.
D.
Answer: A
43)   

What is the SI unit of energy?

A.
B.
C.
D.
Answer: C
44)   

Electric motor works based on...?

A.
B.
C.
D.
Answer: C
45)   

When a switch is off, the circuit is... 

A.
B.
C.
D.
Answer: B
46)   

A good insulator has...

A.
B.
C.
D.
Answer: C
47)   

What happens when current flows through a wire?

A.
B.
C.
D.
Answer: C
48)   

Which among the following uses the principle of mutual induction?

A.
B.
C.
D.
Answer: A
49)   

Resistance increases when...

A.
B.
C.
D.
Answer: A
50)   

The commercial unit of electric energy is... 

A.
B.
C.
D.
Answer: C