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Device used to measure potential difference between two points in a circuit is ?

  • Ammeter
  • Galvanometer
  • Voltmeter
  • None of above

Answer: Option C

Similar Questions :

1. Who discovered Diode Bulb ?

  • Henry Becquerel
  • Sir J.S. Fleming
  • Lee De Forest
  • Archemedes

Answer: Option B

Explanation:

Sir J.S. Fleming discovered Diode Bulb in 1904,

Lee De Forest discovered Triode Bulb in 1906,

Archemedes discovered laws of floatation in 1827,

Henry Becquerel discovered Radioactivity in 1896.

2. Marie and Pierre Curie invented

  • Radio
  • Radium
  • Radar
  • Refrigerator

Answer: Option B

Explanation:

Marie and Pierre Curie of France invented Radium in 1898,

Radio was invented by G. Marconi of England in 1901,

Radar was invented by Dr. A.H. Taylor and L.C. Young of USA in 1922,

Refrigerator was invented by J. Harrison and A. Catlin of Britain in 1834.

3. What is displacement ?

  • Longest distance covered by a body in a random direction.
  • Shortest distance covered by a body in a random direction.
  • Shortest distance covered by a body in a definite direction.
  • Longest distance covered by a body in a definite direction.

Answer: Option C

4. Which law is also called law of inertia ?

  • Newton first law
  • Newton second law
  • Newton third law
  • All of above

Answer: Option A

5. Scalar Quantities are

  • physical quantities which have magnitude only and no direction
  • physical quantities which have no magnitude only and only direction
  • physical quantities which have magnitude only and direction
  • physical quantities which have no magnitude and no direction

Answer: Option A

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