Design an activity to show that electrostatic force is a non-contact force. State the observation and conclusion of the activity
Answers
Answer:
ACTIVITY:
Tear up the paper into tiny pieces. Make a small pile of the pieces of paper. Then, Produce a negative (–) charge on the comb by rapidly passing it through dry, greaseless hair (straight hair works best). Bring the charged comb near the pile. Record what you observe.
OBSERVATION:
We observe that the tiny pieces of paper are getting attracted towards the comb.
CONCLUSION:
We can conclude that the tiny pieces of paper were being attracted towards the comb like magnets by a non-contact force acting on it; Electrostatic Force.
Answer:
Take the plastic comb and rub it on your head or on a woollen cloth. You will observe that the pieces of paper will get attracted towards the comb, even when the comb is not in contact with them. The force exerted is called electrostatic force.
Explanation: