Current ElectricityEveryday Science
Dry human skin has a resistance of
5000 ohms or more
2,000 ohms or more
10,000 ohms or more
6,000 ohms or more
10,000 ohms or more
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Vitamin C is soluble inA. fat
B. water
C. ethers
D. phenols
The value of resistance in insulators is
A. small
B. large
C. zero
D. can not be determined
The resistance of a copper wire if it’s length is 1 m and its diameter is 2 mm is
A. 5.4 x 10-3ย ฮฉ
B. 5 ฮฉ
C. 4 ฮฉ
D. 2 ฮฉ
The wire which carries no electricity is called
A. Earth/ground wire
B. livewire
C. neutral wire
D. delta wire
In a circuit 3 resistors 2ฮฉ, 3ฮฉ, 6ฮฉ are connected (in parallel combination) across a battery of 6V, then the total current of the circuit should be
A. 12A
B. 3A
C. 6A
D. 2A
The specific resistance of iron is
A. 5.25 ร 10-8
B. 1.69 ร 10-8
C. 9.8 ร 10-8
D. 2.75 ร 10-8
The density of air in the atmosphere is
A. uniform
B. not uniform
C. zero
D. none of above
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