Electric Fields Describing the force exerted by an external electric field A poi

Question

Electric Fields Describing the force exerted by an external electric field A point charge of - 8.1 times 10^- 15 C is located where the electric field is directed to the right and has a magnitude of 6.7 times 10^- 4 N/C. Find the force acting on the charge due to the field. Indicate a force to the right by a positive number and a force to the left by a negative number. ____________ (0/5 submissions used)N Electromagnetic Induction Transformers A transformer has 140 loops in its secondary winding and is designed to accept an input AC potential difference of 730 V and produce an output of 460 V. How many loops does the transformer's primary winding contain? ___________ (0/5 submissions used) loops

Explanation / Answer

P32.20.2

We know For transformer,
Vp/Vs = Np/Ns
Substituing Values,
730/460 = Np/140
Np = 222
loops does the transformer’s primary winding contain, Np = 222

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