GENERAL INSTRUCTIONS (Please read the following instructions very carefully)
1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
3. Do not refresh or back page.
4. Do not click the button Submit Test before completing the paper on Answer Sheet.
5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
6. Take photo of all the Sheets and make single pdf file.
1
Which of the following is a good conductor of electricity ________________________.
hydrogen
oxygen
silver
plastic
2
Which of the following device converts electrical energy into heat energy?
Microwave oven
Decoration lights
Electric train
Electric bell
3
A current of 5 ampere is passing through a coil of resistance 50 . What is the potential difference across the coil ?
10 volt
0.1 volt
50 volt
250 volt
4
In parallel combination of the cells positive terminal of one cell is connected to the ___________ terminal of the other cell.
Negative terminal
Positive terminal
With both the terminals of next cell
None of the above
5
Of the following, is an electrical insulator ____________________________.
aluminium
gold
rubber
none of these
6
Non-metals like __________________ and _________________ are good conductors of electricity :
Wood and paper
Graphite and gas carbon
Glass and rubber
None of these
7
The SI unit of resistivity is _______________________.
8
Which of the following produce heat energy?
Hair dryer
Microwave Oven
Kettle
All of these
9
Diamond conducts heat due to ________________
Free electrons
Strong bonding
Weak bonding
Radiation
10
Which of the following are correct :
(a) Static energy is generated by the flow of electrical charge through a conductor across an electrical field.
(b) Current energy is generated by rubbing two or more objects causing to build up of charges on an object.
(c) Charged particles or objects can exert forces on each other. While like (similar) charges repel each other, unlike charges attract.
Only (a) is correct.
Only (b) is correct.
Only (c) is correct.
11
If 10 ampere current flowing through a wire, develops a potential difference of 50 volts across its ends, find the resistance of the wire.
10 ohm
5 ohm
4 ohm
25 ohm
12
In ___________________ of cells negative terminal of one cell is connected to the negative terminal of the other cell.
Parallel combination
Series combination
Both of the above
13
(a) Battery is the bad sources of electricity.
(b) Dry cell is used in devices like clock, remote, etc.
(c) Solar cells are the bad source of electricity.
None of these.
14
(a) Cell and battery are the sources of electricity.
(b) Electric generator can produce electricity.
(c) Solar cells are the good source of electricity.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (c) and (a) are correct.
15
Which one of the following is not an insulator?
Mica
Glass
Wood
Graphite