1
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
$$q^{\prime}=-\left(\frac{r_1}{r_2}\right) q$$
2
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Four capacitors with capacitances $$C_1=l \propto \mathrm{F}, C_2=1.5 \propto \mathrm{F}, C_3=2.5 \propto \mathrm{F}$$ and $$C_4=0.5 \propto \mathrm{F}$$ are connected as shown and are connected to a $$30 \mathrm{~V}$$ source. The potential difference between points $$a$$ and $$b$$ is

AP EAPCET 2021 - 19th August Evening Shift Physics - Capacitor Question 13 English

A
5 V
B
9 V
C
10 V
D
13 V
3
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a potentiometer of 10 wires, the balance point is obtained on the 6th wire. To shift the balance point to 8th wire, we should

A
increase resistance in the main circuit
B
decrease resistance in the main circuit
C
increase resistance in series with the cell whose emf is to be measured
D
decrease resistance in series with the cell whose emf is to be measured
4
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

In a co-axial, straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero

A
outside the cable
B
inside the inner conductor
C
inside the outer conductor
D
in between the two conductors
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