List of practice Questions

In an a.c. circuit containing only capacitor, the phase difference between current and voltage is
In a step-up transformer, the value of current in secondary coil compared to the primary coil is
Image formed by convex mirror is always
If the critical angle for total internal reflection from any medium to vacuum is 30°, then the velocity of light in the medium is.
When an ammeter is shunted then its measurement limit
Dimensional formula of permeability is.
Unit of \( \frac{{\mu_0}}{{\epsilon_0}} \) is.
If the number of turns is increased in any moving coil galvanometer, then its sensitivity
At neutral points
The peak value of an alternating current is 10 A. Its root mean square value will be?
The capacity of any condenser does not depend upon
The electric field on the outer surface of a charged conductor is
If a conductor is placed in an external electric field, the field inside the conductor will be?
Which of the following statements is true for two point charges of opposite sign?
Gauss’s law states that the electric flux through a closed surface is
Kilowatt-hour (kWh) is the unit of
Which of the following laws is based on the principle of energy conservation?
Define supply. Mention the causes which determine the supply of a commodity.
What is Monopoly? What are its main features?
What is meant by Macroeconomics? Discuss its scope.
Explain the importance of National Income.
What are the main functions of money?
Define central bank and explain its functions.
Two equal positive point charges of 1 μC charge are kept at a distance of 1 metre in air. The electric potential energy of the system will be.
Which one of the following is the unit of capacity?