HARD
11th Maharashtra Board
IMPORTANT
Earn 100

A metal sphere cools from 80°C to 60°C in 6 min. How much time with it take to cool from 60°C to 40°C if the room temperature is 30°C?

Important Questions on Electrostatics

EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 1
An electron is placed between two parallel plates connected to a battery. If the battery is switched on, the electron will
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 1
Two charges of 1.0C each are placed one meter apart in free space. The force between them will be 
MEDIUM
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 1
Two point charges of +5 μC are so placed that they experience a force of 8.0×10-3 N. They are moved apart so that the force is now  2.0×10-3 N. The distance between them is now 
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 1
A metallic sphere A isolated from the ground is charged to +50 μC. This sphere is brought in contact with other isolated metallic sphere B of half the radius of sphere A. The charge on the two sphere will now be in the ratio
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 1
Which of the following produces uniform electric field?
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 1
Two point charges of A = +5.0 µC and B = -5.0 µC are separated by 5.0 cm. A point charge C = 1.0 µC is placed at 3.0 cm away from the centre on the perpendicular bisector of the line joining the two point charges. The charge at C will experience a force directed towards
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 2
What is the magnitude of charge on an electron?
EASY
11th Maharashtra Board
IMPORTANT
Physics>Chapter 10 - Electrostatics>Exercises>Q 2
State the law of conservation of charge