Multiple choice question XI — task. Science CBSE, Class 10.

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1. Appliances that have a metal body are generally connected to the earthing wire. What is the reason to earth these wires?

To prevent the excess current
To prevent the leakage of current
To provide extra current to the appliance
To provide high resistance to the appliance

2. What is the formula for the magnetic force experienced by a current-carrying conductor placed in a magnetic field?

\(F\ =\ BIL\)
\(F\ =\ BIL\ sin\theta\)
\(F\ =\ BIL\ cos\theta\)
\(F\ =\ BIL\ tan\theta\)

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