Physics Test - ...

An infinite line charge produces a field of \(9 \times 10^{4} {NC}^{-1}\) at a distance of \(2 {~cm}\). Calculate the linear charge density.

When one joule of energy is consumed in one second, then the power used is said to be?

The relation between flowing current \((i)\) and deflection \((\theta)\) obtained in moving coil galvanometer will be:

What is the effect on the interference fringes in Young's double slit experiment if the width of the source slit is increased?

The current sensitivity of a moving coil galvanometer increases by 20% when its resistance increases by a factor 2 while keeping the number of turns constant. The voltage sensitivity changes by _________increases/decreases.

'VA' is the unit of which one?

Which of the following effect proves the wave nature of light?

A circular road of 1000 m radius has a banking angle of 45°, the maximum safe speed of a car having a mass of 2000 kg will be (if the coefficient of friction between tyre and road is 0.5):

A 120 cm long rod is subjected to an axial pull of 18 kN. If the diameter of the rod is 3 cm, the stress acting on it is:

A train runs by a constant speed towards east. A person sitting on a seat facing east tosses a coin. The coin: