Q18 · 2022 · Paper 1Simple familiar1 mark
QUESTION 18
The primary and secondary coils from a lossless transformer are shown.
Compared to the primary coil, the secondary coil will experience decreased
(A)
power.
(B)
current.
(C)
voltage.
(D)
resistance.
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
The secondary has more turns, so the transformer steps the voltage up. For a lossless transformer, power is conserved, so the secondary current must decrease. Option B.
Selects option B.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.