Science
In the following diagram, the position of the needle is shown on the scale of a voltmeter. The least count of the voltmeter and the reading shown by it respectively are :
- 0.15 V and 1.6 V
- 0.05 V and 1.6 V
- 0.15 V and 1.8 V
- 0.05 V and 1.8 V
Related Questions
The resultant magnetic field at point 'P' situated midway between two parallel wires (placed horizontally) each carrying a steady current I is
- in the same direction as the current in the wires.
- in the vertically upward direction.
- zero
- in the vertically downward direction.
Assertion (A) : The colour of aqueous solution of copper sulphate turns colourless when a piece of lead is added to it.
Reason (R) : Lead is more reactive than copper, and hence displaces copper from its salt solution.
- Both (A) and (R) are true and (R) is the correct explanation of (A).
- Both (A) and (R) are true, but (R) is not the correct explanation of (A).
- (A) is true, but (R) is false.
- (A) is false, but (R) is true.
In domestic electric circuits the wiring with 15 A current rating is for the electric devices which have
- higher power ratings such as geyser.
- lower power ratings such as fan.
- metallic bodies and low power ratings.
- non-metallic bodies and low power ratings.