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Question 7

The e.m.f of an eletrical generator is 240V and its internal resistance is 1 ohms. If the current supplied by generator is 20A when the terminal voltage is 220V. Find the ratio of the power supplies to the power dissipated.

  • A.11:1
  • B.1:11
  • C.12:11
  • D.11:12
  • E.1:23
Objective

Question details

Exam body
UNIZIK
Subject
Physics
Year
2014/2015 Day 3
Question no.
#7
Type
Objective
Previous · Q6The primary coil of a transformer is 500 turns while the secondary coil is 2500… Next · Q8 Step down transformer has a power output of 50W and efficiency of 80%. If the…

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