Electrostatics-Electric Field [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 6 - 10 of 43

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Question 6

Appeared in Year: 2006 (AIIMS)

Question MCQ▾

Two parallel large thin metal sheets have equal surface charge densities of opposite signs. The electric field between these sheets is – [AIIMS]

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 7

Question MCQ▾

Two parallel large thin metal sheets have equal surface charge densities of opposite signs. The electric field between these sheets is –

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 8

Question MCQ▾

A hollow charged metal sphere has radius . If the potential difference between its surface and a point at distance from the centre is . Find out the electric field intensity at a distance from the centre.

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Passage

Consider a block of conducting material of resistivity shown in the figure. Current enters at and leaves from . We apply superposition principle to find voltage developed between and . The calculation is done in the following steps:

(i) Take current entering from and assume it to spread over a hemispherical surface in the block.

(ii) Calculate field E (r) at distance from by using Ohm՚s law where j is the current per unit area at .

(iii) From the ‘r’ dependence of , obtain the potential at .

(iv) Repeat (i) , (ii) and (iii) for current leaving and superpose results for and . (AIEEE)

A Block of Conducting Material

Question 9 (1 of 1 Based on Passage)

Question MCQ▾

For current entering at , the electric field at a distance from is

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 10

Appeared in Year: 2007

Question MCQ▾

Charges are placed on the vertices of a square as shown. Let be the electric field and the potential at the centre. If the charges on and are interchanged with those on and respectively, then;

Four Charges Placed at Vertices of Square

(AIEEE)

Choices

Choice (4)Response

a.

remains unchanged, changes

b.

Changes, remains unchanged

c.

and remains unchanged

d.

and change

Edit