ICSE Class 10 Physics 2019 Solved Paper

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Question : 32 of 74
 
Marks: +1, -0
State two ways to increase the speed of rotation of a D.C. motor.
Solution:
The two ways to increase the speed of rotation of a D. C. motor are :
(1) by increasing the strength of current in its coil.
(2) by increasing the number of turns in its coil.
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