Current Electricity

Current Electricity
2 resistances of 4kΩ and 6kΩ are joined in series, if a battery of 10 V is connected across the ends then, the current passing through each of the resistance is
1 mA
10 mA
5 mA
2 mA
Author: rikazzz Comment
Current Electricity
In metals, the current is produced due to the flow of
positive charges
negative charges
no charges
partially charges
Author: rikazzz Comment
Current Electricity
If the charge passes through a wire is 0.5C then the current of 50 mA will flow in
10 seconds
15 seconds
12 seconds
20 seconds
Author: rikazzz Comment
Current Electricity
How much current flows through a body if it touches the terminals of a 12 V battery at 100,000 Ω resistance?
1.2 × 10^-4
2.3 × 10^-4
2.58 × 10^-4
4 × 10^-4
Author: rikazzz Comment
Current Electricity
The energy supplied by a battery to a unit positive charge when it flows through the closed circuit is called
potential difference
electromotive force
ohm’s law
convential current
Author: rikazzz Comment
Current Electricity
If the price of a unit is Rs.15 then calculate the one month cost of using 60 W energy saver for 10 hours daily.
Rs. 250
Rs. 180
Rs. 270
Rs. 540
Author: rikazzz Comment
Current Electricity
If a copper wire is 2 m long and its diameter is 2 mm, then its resistance should be
2 × 10^-2
0.58 × 10^-2
3.54 × 10^-2
1.07 × 10^-2
Author: rikazzz Comment
Current Electricity
One microampere (µ A) is equal to
10^-9A
10^-6A
10^-3A
10^-6A
Author: rikazzz Comment
Current Electricity
The appliances should not operate after the fuse has blown, so the fuses are connected with
Earth/ground wire
livewire
neutral wire
delta wire
Author: rikazzz Comment
Current Electricity
Electric current has a single path through the circuit in
random combination
series combination
parallel combination
circular combination
Author: rikazzz Comment

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