O-LevelPhysicsMagnetism5054/12 · May/June 2018 · Q361 Mark
A step-down transformer has a primary coil and a secondary coil wound on a soft-iron core. The primary coil is connected to a 6.0 V direct current (d.c.) supply. Which statement about the transformer is correct?
AThe output voltage is equal to 6.0 V.
BThe output voltage is greater than 6.0 V.
CThe output voltage is less than 6.0 V but more than zero.
DThere is no output voltage.
✓ Correct answer
D: There is no output voltage.
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