Worksheet: Transformation of Current and Voltage
In this worksheet, we will practice calculating the current and voltage changes due to electromagnetic induction using a step-up or step-down transformer.
A step-up transformer connected to a 110 V line is used to supply a hydrogen gas discharge tube with 5.0 kV (rms). The tube dissipates 75 W of power.
What is the ratio of the number of turns in the secondary winding to the number of turns in the primary winding?
What is the rms current in the primary winding?
What is the rms current in the secondary winding?
What is the effective resistance seen by the 110 V source?