Electricity and Magnetism Answers

Calculate much net Work per unit charge would it take to move a particle from a -15 V potential 

to a +10 V potential? Does the path of the motion matter?

The heat from the sun travels to the earth through the process of?

Can i know if there is any suggestion of new electromagnetic waves application to be used in this pandemic era

A wire with resistance of 8.0ohms is drawn out through a die such that it’s new length is twice it’s original length. Find the resistance of the longer wire assuming that the resistivity and the density of the material of the wire are unchanged during the drawing process

Two parallel plates have equal and opposite charges. When space

was evacuated, the electric field was 2.80 x 105 V/m. When it

was filled with a dielectric material, the electric field was 1.20 x

105 V/m. What is the dielectric constant? What is the material?

If the value you computed has an SI unit of 𝐶²m²/kgm², the quantity could be

a. potential difference c. electric field

b. dielectric constant d. capacitance

A parallel-plate capacitor has a capacitance C. What is the new

capacitance if a dielectric with K = 4 is inserted between its plates?

Suppose the space between the plates of the capacitor is filled

with equal thickness of the same dielectrics but arranged as

shown in the figure. Each having an area of 8.0x10-4 m2 and

separated from each other by 5.0 mm. Half of the space between

the plates is filled with glass and the other with mica. What is its

capacitance?

The speed of a car is decreased uniformly from 30 meters per second to 10 meters per second in 4 seconds. The magnitude of the car's acceleration in m/s^2 is

A point charge q1 = +3.80 μC is at origin. How far should the second point charge of +6.20 μC be placed to have electric potential energy of 0.700 J?