Calculate the current in the secondary coil

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Reference no: EM13496352

A high intensity desk lamp is rated at 45W but requires only 12V. It contains a transformer that converts 120V household voltage.

a) Is the transformer step up or step down?

b) What is the current in the secondary coil when the lamp is on?

c) What is the current is the primary coil?

d) What is the resistance of the bulb when in?

Reference no: EM13496352

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