1.What do you understand by the phrase “a body is grounded”? 2.What determines t

Question

1.What do you understand by the phrase “a body is grounded”?

2.What determines the property of a metal as a good conductor of electricity?

3.What is the meaning of the difference in potential between two points in an electric field?

4. What is the kinetic energy in electron volts of an electron whose speed is 1.0 x 106 m/s (ve) ? Formula:KE = ½ mv2

5.What is the speed of an electron whose kinetic energy is 50 electron volts (ev)?

Given: m e = 9.1 x 10-31 kg

KE = ? Required:v?

Solution:Convert 50 ev to joules

Explanation / Answer

solving the first question according to the guidelines.

a body is said to be grounded if it is connected to Earth. grounding has to be done as it provides a refernce according to which other voltages are measured and established. in other words it also mean a physical connection to Earth. grounding has to be done as it provides safety to the instrument

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