Question

Please give an explanationof these Q.
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Answer 1

Answer:

Since the charge is four times the charge is also increased to 4 times

Answer 2

Answer:

option 3

Explanation:

as field depends on factors which ate variable and in this case only charge is changed

therefore field becomes 4 times the initial value.

it isn't -4 E as the direction of field and the negative charge cancel each other.