MEDIUM
12th ICSE
IMPORTANT
Earn 100

Draw electric lines of force due to (i) two equal positive point-charges, (ii) an electric dipole.

Important Questions on Electric Charges and Fields

MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 10
When we draw lines of force for two equal positive charges, the neutral point is found at the mid-point of the line joining the charges. If the two charges are unequal, then?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 11
Why do electric lines of force never intersect each other?
MEDIUM
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 12
Two point-charges+q  and -q are situated at a distance from each other. At what points is the resultant electric field parallel to the line joining the charges?
EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 13

In the adjoining diagram, electric lines of force are drawn between a positively-charged ball and a large metallic plate connected to the earth. What conclusion can you draw regarding the electric-field inside and outside the plate? Will these conclusions be true for a non-metallic plate?

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EASY
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 14
A charged particle is free to move in an electric field. Will it always move along a line of force?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 15
An electron and a proton are freely situated in an electric field E. Will the electric forces on them be equal? Accelerations?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 16
Two point-charges of unknown magnitudes and signs are placed at a distance apart. The electric field is zero at a point between the charges on the line joining them. What can we conclude about the signs and the magnitudes of the charges?
HARD
12th ICSE
IMPORTANT
NOOTAN ISC PHYSICS Class 12 Part-1>Chapter 1 - Electric Charges and Fields>QUESTIONS>Q 17
Two point-charges of unknown magnitudes and signs are placed at a distance apart. The electric field is zero at a point, not between the charges but on the line joining them. Write two essential conditions for this to happen.