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Physics help, thank you! ?
The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. The turns ratio of the transformer is 41:1. The primary coil is plugged into a standard 120-V outlet. The current in the secondary coil is 2.0 x 10-3 A. Find the power consumed by the air filter.
- billrussell42Lv 71 month ago
secondary voltage is 120•41 = 4920 volts
2.0 x 10-3 A ?? what does this mean ?
that is 20–3 = 17 amps, much too high...
power is secondary is 4920•17 = 83640 watts, a silly result.