Physics, 08.07.2021 04:40 jgcugucgucg
Question 6 (5 marks)
A DC motor of square coil ABCD with sides 10.0 ch consists of 100 turns. It is rotated in the field of a
uniform permanent magnet of field strength 20 mT, as shown in Figure 5. The current in the square coil
is 500 mA.
Figure 5
In the position shown, what is the magnitude of the net force on the arms AB?
2 marks
Answers: 3
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Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?
Answers: 2
Question 6 (5 marks)
A DC motor of square coil ABCD with sides 10.0 ch consists of 100 turns. It is...
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