What is the difference between direct current generator and alternating current generator?

Describe an activity with labelled diagram to show that a current carrying conductor experiences a force in a magnetic field.

State the rule to determine the direction of force.

Explain the various part of AC generator.

Mr. Sharma used to park his car in the basement of his house. One day in the morning he noticed that his basement is full of knee-deep water and its walls were wet because of the hours-long rain at night. When he entered the basement, he experienced a major shock. His father seeing him from outside, rushed to the main switch and switched it off and thus saved his life.

(a) Why Mr. Sharma experienced the shock?

(b) What precautions should Mr. Sharma take to avoid such incidences in future?

(c) Which qualities were shown by Mr. Sharma’s father?