Electrical Engineering Mcqs

An ammeter should have_____________ resistance?

• (A)  Infinite
• (B)  Very large
• (C)  Very low
• (D)  None of the above

Answer

Submitted By :Ali Uppal

An ammeter is connected in __________ with the circuit element whose current we wish to measure?

• (A)  Series
• (B)  Parallel
• (C)  Series or parallel
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The sensitivity of a multimeter is given in _______________?

• (A)  O
• (B)  Amperes
• (C)  kO/V
• (D)  none of the above

Answer

Submitted By :Ali Uppal

If a multimeter has a sensitivity of 1000 O per volt and reads 50 V full scale, its internal resistance is _____________?

• (A)  20 kO
• (B)  50 kO
• (C)  10 kO
• (D)  None of the above

Answer

Submitted By :Ali Uppal

The input resistance of a VTVM is about ______________?

• (A)  1000 O
• (B)  10 kO
• (C)  20 kO
• (D)  10 MO

Answer

Submitted By :Ali Uppal

Two multimeters A and B have sensitivities of 10 kO/V and 30 kO/V respectively. Then ______________?

• (A)  Multimeter A is more sensitive
• (B)  Multimeter B is more sensitive
• (C)  Both are equally sensitive
• (D)  None of the above

Answer

Submitted By :Ali Uppal

What is the total resistance of a voltmeter on the 10 V range when the meter movement is rated for 50 µA of full-scale current ?

• (A)  10 kO
• (B)  20 kO
• (C)  200 kO
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A series ohmmeter circuit uses a 3 V battery and a 1 mA meter movement. What is the half-scale resistance for this movement ?

• (A)  3 kO
• (B)  kO
• (C)  kO
• (D)  6 kO

Answer

Submitted By :Ali Uppal

When an ammeter is inserted in the circuit, the circuit current will _____________?

• (A)  Increase
• (B)  Decrease
• (C)  Remain the same
• (D)  None of the above

Answer

Submitted By :Ali Uppal

A VTVM is never used to measure ______________?

• (A)  Voltage
• (B)  Current
• (C)  Resistance
• (D)  None of the above

Answer

Submitted By :Ali Uppal