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. |
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. |
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. |
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)
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. |
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;
(AIEEE)
Choices
Choice (4) | Response | |
---|---|---|
a. | remains unchanged, changes | |
b. | Changes, remains unchanged | |
c. | and remains unchanged | |
d. | and change |