SSLC (English Medium) कक्षा ९ - Tamil Nadu Board of Secondary Education Question Bank Solutions

Psi stands for ______.

The absolute pressure is zero-referenced against atmospheric pressure. 

How will you find the absolute pressure?

The resistance of a straight conductor is independent of ______.

What is the maximum resistance one can make with ten 1Ω resistors?

Two conductors of resistance 2 R and R are connected in series in a battery circuit. The ratio of heat developed In them is ______.

The resistance of a conductor is R. If Its length is doubled, then its new resistance will be ______.

Resistors are connected in series if the resistance of the electric circuit is to be ______.

______ is the only non-metal that is a good conductor of electricity.

If the area of cross-section of the conductor is doubled its resistance gets ______.

Three resistors are connected in series with a cell. If the current in each resistor is 1.5A, then the current through the cell will be ______.

Three resistors are connected in parallel with a battery. If the current in each resistor is 2A, then the current through the battery will be ______.

The ______ is the measure of opposition offered by the component to the flow of electric current through it.

The process of conduction of electric current through the solution is called ______.

A rheostat is also known as fixed resistance.

Match the following:

Define the following:

Fixed resistor

Define the following:

Variable resistor

How can the speed of rotation of a coil be increased? Write at least three methods.

The most suitable material for making permanent magnets is ______.