Current Electricity Test

Result

Current Electricity Test - 102

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Weekly Quiz Competition

Question 1
4 / -1

To draw maximum current from a combination of cells,how should the cells be grouped

A
Series

B
Parallel

C
Mixed

D
Depends upon the relative values of external and internal resistance
Question 2
4 / -1

A current 2 A flows through a 2 Ω resistor when connected across a battery. The same battery supplies a current 0.5 A when connected across a 9 Ω resistor. The internal resistance of the battery is

A
1 Ω

B
0.5 Ω

C
1/3 Ω

D
1/4 Ω

Solution
Question 3
4 / -1

In the circuit shown in the figure, if the potential at point A is taken to be zero, the potential at point B is

A
–2 V

B
+1 V

C
–1 V

D
+2 V

Solution
Question 4
4 / -1

A galvanometer can be converted into an ammeter byconnecting

A
Low resistance in series

B
High resistance in parallel

C
Low resistance in parallel

D
High resistance in series
Question 5
4 / -1

A galvanometer having a coil resistance of 60 Ω shows full scale deflection when a current of 1.0 amp passes through it. It can be converted into an ammeter to readcurrents upto 5.0 amp by

A
Putting in parallel a resistance of 240 Ω

B
Putting in series a resistance of 15 Ω

C
Putting in series a resistance of 240 Ω

D
Putting in parallel a resistance of 15 Ω

Solution
Question 6
4 / -1

In the circuit given, the correct relation to a balancedWheatstone bridge is

A

B

C

D
None of these
Question 7
4 / -1

A
3V

B
2.25V

C
4V

D
4.5V

Solution
Question 8
4 / -1

By ammeter, which of the following can be measured

A
Electric potential

B
Potential difference

C
Current

D
Resistance
Question 9
4 / -1

The resistance of 1 A ammeter is 0.018 Ω. To convert it into 10 A ammeter, the shunt resistance required will be

A
0.18 Ω

B
0.0018 Ω

C
0.002 Ω

D
0.12 Ω

Solution
Question 10
4 / -1

An ammeter of 5 ohm resistance can read 5 mA. If it is to be used to read 100 volt, how much resistance is to be connected in series?

A
19.9995 Ω

B
199.995 Ω

C
1999.95 Ω

D
19995 Ω

Solution