Choose the incorrect statement from the following statements.

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Fleming's right-hand rule is a simple rule to know the direction of induced current.

The right hand thumb rule is used to find the direction of magnetic field due to current carrying conductors.

The difference between the direct and alternating currents is that the direct current always flows in one direction, whereas the alternating current reverses its direction periodically.

In India, the AC changes direction after every

\frac{1}{50}

second.

answer is D.

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Detailed Solution

In India, the AC changes direction after every

\frac{1}{50}

second.
Fleming's right-hand rule states that if we stretch our right hand's thumb, forefinger and middle finger perpendicular to each other, the forefinger shows the direction of the magnetic field, the middle finger points the direction of current and the thumb points in the direction of the force. The right-hand thumb rule for a current-carrying conductor is used to find the direction of the magnetic field. Direct current is unidirectional, whereas alternating current reverses its direction periodically.
The frequency of AC in india