An insulating sphere of radius 13 cm has a uniform charge density throughout its volume. 13 cm 21.6 cm 7.5 cm p If the magnitude of the electric field at a distance of 7.5 cm from the center is 78400 N/C , what is the magnitude of the electric field at 21.6 cm from the center? Answer in units of N/C

The value is

Explanation:

From the question we are told that

The radius is

The electric field is at a distance

Generally the electric field at a distance is mathematically represented as

Note: the reason we are using this

formula is because

Here k is the coulomb constant with value

=>

Generally the electric field at a distance is mathematically represented as

Note: the reason we are using this

formula is because

Now dividing

=>

=>

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas