The speed of transmission of electricity is equal to the speed of light which is given as $3 \times 10^{8} k m s^{- 1}$ .

True

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False

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Solution

The correct option is B
False

The speed of transmission of electricity is approximately equal to the speed of light. As the propagation of light is nothing but the propagation of electromagnetic waves which is the same as transmission of electricity. But, speed of light is $3 \times 10^{8} m s^{- 1}$ , not $3 \times 10^{8} k m s^{- 1}$ .

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The speed of transmission of electricity is equal to the speed of light which is given as $3 \times 10^{8}$ km/s.

State True or False.
The speed of transmission of electricity is equal to the speed of light which is given as $3 \times 10^{8} k m / s$ .

The speed of transmission of electricity is equal to the speed of light which is given as $3 \times 10^{8} k m s^{- 1}$ .

The speed of light in air is: (a) $3 \times 10^{8} c m / s$ (b) $3 \times 10^{8} m m / s$ (c) $3 \times 10^{8} k m / s$ (d) $3 \times 10^{8} m / s$

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