1
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

A circular coil of radius $$R$$ has a resistance of $$40 \Omega$$. Figure shows two points $$P$$ and $$Q$$ on the circumference separated by a distance $$\frac{\pi R}{2}$$ which are connected to a 16 V battery with internal resistance of $$0.5 \Omega$$. What is the value of current $$I$$ flowing through the circuit?

MHT CET 2020 16th October Evening Shift Physics - Current Electricity Question 58 English

A
3A
B
2A
C
1A
D
0.5A
2
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following instruments is not a direct reading instrument?

A
Electronic balance
B
Potentiometer
C
Ammeter
D
Voltmeter
3
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

In conversion of moving coil galvanometer into an ammeter of required range, the resistance of ammeter, so formed is

[$$S=$$ shunt and $$G=$$ resistance of galvanometer]

A
$$\frac{S+G}{S G}$$
B
$$\frac{S G}{S+G}$$
C
$$\frac{S-G}{S G}$$
D
$$\frac{S G}{S-G}$$
4
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

An ammeter of resistance $$20 \Omega$$ gives full scale deflection, when $$1 \mathrm{~mA}$$ current flows through it. What is the maximum current that can be measured by connecting 4 resistors each of $$16 \Omega$$ in parallel with the ammeter?

A
6 mA
B
4 mA
C
8 mA
D
2 mA
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