# physics

During a lighting discharge, 30C of charge move through a potential difference of 1.0 X 10^8V in 2.0X10^-2s. The energy released by this lighting bolt is:
a)1.5 X 10^11 J
b) 3.0 X 10^9 J
c) 6.0 X 10^7 J
d) 3.3 X 10^6 J
e) 1500 J

Ok I am not really sure what equation to use for this problem. I went through the equations and I still am not sure.

What is an electron volt is:

is a unit of energy. It is the amount of kinetic energy gained by a single unbound electron when it passes through an electrostatic potential difference of one volt

Thank you for any help

Your definition of an electron volt is correct.
The answer to the multiple-choice problem is (b) (Energy = voltage x charge)

1. 👍 0
2. 👎 0
3. 👁 56

## Similar Questions

1. ### physics

I need some one to help me out, how to calculate the total energy released by the lightning bolt; if a lightning dischar, 30c of charge move through a potential difference of 1.0 x10*8v in 2.0 x 10-2s.

asked by sofi on January 4, 2010
2. ### physics

A uniform electric field of magnitude 333 N/C is directed along the +y-axis. A 6.00 µC charge moves from the origin to the point (x, y) = (-10 cm, -37 cm). A). What is the change in the potential energy associated with this

asked by Jan on February 8, 2010
3. ### College Physics II

A uniform electric field of magnitude 203 V/m is directed in the negative y direction. A +12.5 μC charge moves from the origin to the point (x, y) = (19.5 cm, 51.8 cm). 1) What was the change in the potential energy of this

asked by VJC on September 15, 2010
4. ### Physics

A uniform electric field of magnitude 203 V/m is directed in the negative y direction. A +12.5 μC charge moves from the origin to the point (x, y) = (19.5 cm, 51.8 cm). 1) What was the change in the potential energy of this

asked by VJC on September 8, 2010
5. ### physics

The physics of moving a small charge through a potential difference. How much work is needed to move a -8.0 ìC charge from ground to a point whose potential is +75 V?

asked by aly on April 28, 2011
6. ### Physics

Lighting strike: Storm clouds build up large negative charges that dwell in a charge center. Suppose a storm cloud has -25 C in a charge center located 10 km above the ground. The negative charge center attracts an equal amount of

asked by Cassie on March 22, 2013
7. ### physics

A uniform electric field of 500. V/m is directed in the negative x direction. A +15ìC charge moves from the origin to the point (x,y) = (20.0 cm, 50.0 cm). (a) what was the change in the potential energy of this charge? (b)

asked by frank on September 8, 2007
8. ### physics

If a negative charge is initially at rest in an electric field, will it move towards a region of higher potential or lower potential? What about a positive charge? How does the potential energy of the charge change in each case?

asked by myra on May 27, 2012
9. ### Physics

Thank you for answering my previous questions! I have another one now in regards to the following question... An unknown potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface

asked by Sandra on February 28, 2010
10. ### Physics-Ohms Law

Will you check my answers please? A volt is a unit of current and an amprere is a unit of current. It is common to call electric potential difference- voltage A current of 1 ampere is a flow of charge at the rate of 1 coulomb per

asked by Jennifer on October 24, 2007

More Similar Questions