1
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two charges 8 $$\mu$$C each are placed at the corners A and B of an equilateral triangle of side 0.2 m in air. The electric potential at the third corner C is

A
7.2 $$\times$$ 10$$^5$$ V
B
1.8 $$\times$$ 10$$^5$$ V
C
3.6 $$\times$$ 10$$^5$$ V
D
3.6 $$\times$$ 10$$^4$$ V
2
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Gauss's law helps in

A
determination of electric force between point charges
B
situation where Coulomb's law fails
C
determination of electric field due to symmetric charge distributions
D
determining electric potential due to symmetric charge distributions
3
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Charge on the outer sphere is $$q$$ and the inner sphere is grounded. The charge on the inner sphere is $$q^{\prime}$$, for $$\left(r_2 > r_1\right)$$. Then,

A
$$q^{\prime} r_1=q r_2$$
B
$$q^{\prime}=q$$
C
$$q^{\prime}=\frac{r_1}{r_2} q$$
D
$$q^{\prime}=-\left(\frac{r_1}{r_2}\right) q$$
4
AP EAPCET 2021 - 19th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which statement(s) among the following are incorrect?

(i) A negative test charge experiences a force opposite to the direction of the field.

(ii) The tangent drawn to a line of force represents the direction of electric field.

(iii) The electric field lines never intersect.

(iv) The electric field lines form a closed loop.

A
Only (i)
B
Both (i) and (ii)
C
Only (iii)
D
Only (iv)
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