1. SI unit of electric current is ampere. Current is said to be 1 ampere (1A), if 1 coulomb charge flows per second across a cross-section of a conductor.

    SI unit of electric current is ampere. Current is said to be 1 ampere (1A), if 1 coulomb charge flows per second across a cross-section of a conductor.

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  2. An electric circuit is a continuous and closed path for flow of an electric current. If the electric circuit is complete, electric current can flow through the circuit. if the circuit is broken anywhere or switch of the circuit is turned off, the current stops flowing.

    An electric circuit is a continuous and closed path for flow of an electric current. If the electric circuit is complete, electric current can flow through the circuit. if the circuit is broken anywhere or switch of the circuit is turned off, the current stops flowing.

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  3. The student is suffering from myopia or short- sightedness. The defect can be corrected by the use of concave (diverging) lens of an appropriate power.

    The student is suffering from myopia or short- sightedness. The defect can be corrected by the use of concave (diverging) lens of an appropriate power.

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  4. A person with a myopic eye having the far point at 1.2 m should use a concave lens of focal length 1.2 m so as to restore proper vision.

    A person with a myopic eye having the far point at 1.2 m should use a concave lens of focal length 1.2 m so as to restore proper vision.

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  5. The light bends towards the normal on entry into water. It is due to the fact that as compared to air, the water is an optically denser medium.

    The light bends towards the normal on entry into water. It is due to the fact that as compared to air, the water is an optically denser medium.

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