A 60 cycle current has a maximum value of 6.5A. What will be the instantaneous value of current at (a)0.0035 sec after the wave passes through zero in a positive direction (b)0.01153 sec after the wave passes through zero in a positive direction
Solve the following problems completely. Box your final answer/s. Rounding off should only be done on your final answers with four decimal places only. Use engineering lettering and avoid erasures.
1. A 60 cycle current has a maximum value of 6.5A. What will be the instantaneous value of current at (a)0.0035 sec after the wave passes through zero in a positive direction (b)0.01153 sec after the wave passes through zero in a positive direction 2. A sinusoidal voltage having a effective value of 120V is impressed across a 50 ohms resistor. Calculate the rms and maximum value of current.
3.Calculate the average voltage induced in a coil of 300 turns through which the flux changes from 250,000 to 20,000 maxwells in 0.15 sec.
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