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Byju's Answer
Standard VIII
Physics
Electrification
78. Which rul...
Question
78. Which rule is used to find North-South polarities of an electromagnet?
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Q.
The north-south polarities of an electromagnet can be found directly by using
Q.
The north-south polarities of an electromagnet can be found easily by using:
(a) Fleming's right-hand rule
(b) Fleming's left-hand rule
(c) Clock face rule
(d) Left-hand thumb rule
Q.
Does electromagnet have South pole & North Pole?
Q.
The direction of current flowing in the coil of an electromagnet at its two ends X and Y are as shown below:
(a) What is the polarity of end X?
(b) What is the polarity of end Y?
(c) Name and state the rule which you have used to determine the polarities.
