Question text
31 Which transformer arrangement produces an output e.m.f. that is larger than the input p.d.? B iron core a.c. output input A iron core d.c. output input C D iron core iron core d.c. a.c. output output input input
31 Which transformer arrangement produces an output e.m.f. that is larger than the input p.d.?
B
iron core
a.c.
output
input
A
iron core
d.c.
output
input
C D
iron core iron core
d.c. a.c.
output output
input input
Select your answer: