____ are the materials which allow electric current to pass through them.

the materials which does not allow electric current is called ____.

Find whether the following sentences are true or false. Ebonite do not allow electric charges to pass through them.

Assertion : Muscle wires are thin strands of wire made of shape memory alloys. Reason : They can contract by 5% when electric current is passed through them.

Three wires of equal lengths are bent in the form of loops . One of the loops is circle, another is a semi - circle and the third one is a square. They are placed in a uniform magnetic field and same electric current is passed through them. Which of the following loop configuration will experience greater torque ?

Three wires of equal lengths are bent in the form of loops. One of the loops is circle, another is a semi-circle and the third one is a square . They are placed in a uniform magnetic field and same electric current is passed through them. Which of the following loop configuration will experience greater torque ?

Muscle wires can contract by ____ when electric current is passed through them

Assertion: LED bulb is a semi-conductor device that emits visible light when an electric current passes through it. Reason: LED television is one of the most important applications of light emitting diodes.

Substances which allow heat to pass through them are called_____