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When a conductor carries current, it means that charges (typically electrons) are in motion inside the conductor. A magnetic field exerts a force on these moving charges , not on stationary ones. This force is given by the Lorentz force law : This interaction causes the entire conductor to experience a mechanical force when placed in a magnetic field.
A clock gets fast by 15 minutes every day. If, on a certain day, the clock shows correct time at 12 in the noon, what time will the clock show at 4:00 ...
At 2'0 clock, the hands of a clock make an acute angle and a reflex angle. How much is the reflex angle (in degrees)?
Find the cube of 373.
Length of a minute hand of a clock is 14 cms. Area swept bv the minute hand in 5 minutes is: