Question text
31 A student rubs different rods held in his hand. Which rod gains a large electrostatic charge? A a polythene rod rubbed with a steel magnet B a polythene rod rubbed with a woollen duster C an iron rod rubbed with a steel magnet D an iron rod rubbed with a woollen duster
31 A student rubs different rods held in his hand.
Which rod gains a large electrostatic charge?
A a polythene rod rubbed with a steel magnet
B a polythene rod rubbed with a woollen duster
C an iron rod rubbed with a steel magnet
D an iron rod rubbed with a woollen duster
Select your answer: