Physics
The graph plotted for potential difference (V) against current (I) for ohmic resistors is :
- A curve passing through the origin.
- A straight line not passing through origin.
- A straight line passing through the origin.
- A circle centred at the origin.
Related Questions
Free vibrations are :
- the vibrations under the influence of a periodic force.
- the vibrations with larger amplitude.
- the vibrations when the frequency continuously decreases.
- the vibrations with a constant frequency and constant amplitude.
The diagram below shows four sound waves. Which sound has the highest pitch?
A main switch in the main distribution board is present in :
- a live wire
- a neutral wire
- a live as well as neutral wire
- an earth wire
A conductor AB is kept along north south direction of the earth above a magnetic needle as shown below. When the key K is closed then:
- the needle will not show any deflection.
- the needle will deflect towards east.
- the needle will turn in the opposite direction i.e. towards south.
- the needle will deflect towards west.