AP EAPCET 2021 - 20th August Morning Shift | Electrostatics Question 10 | Physics

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

7.2 $$\times$$ 10$$^5$$ V

1.8 $$\times$$ 10$$^5$$ V

3.6 $$\times$$ 10$$^5$$ V

3.6 $$\times$$ 10$$^4$$ V

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

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Gauss's law helps in

determination of electric force between point charges

situation where Coulomb's law fails

determination of electric field due to symmetric charge distributions

determining electric potential due to symmetric charge distributions

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-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,

$$q^{\prime} r_1=q r_2$$

$$q^{\prime}=q$$

$$q^{\prime}=\frac{r_1}{r_2} q$$

$$q^{\prime}=-\left(\frac{r_1}{r_2}\right) q$$

AP EAPCET 2021 - 19th August Morning Shift

MCQ (Single Correct Answer)

-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.

Only (i)

Both (i) and (ii)

Only (iii)

Only (iv)

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