Which of the following is a desirable property of a fuse Wire?
High expansively
High thermal conductivity
Low density
Low electrical resistivity
Low melting point
Correct answer is D
No explanation has been provided for this answer.
In which of the following is the expansion of solids a disadvantage?
Electric iron
Fire alarm
The balance wheel of a watch
The bimetallic thermometer
The fitting of wheels in rims
Correct answer is C
No explanation has been provided for this answer.
A 12V battery supplies a current of 0.4A to a lamp. Calculate the resistance of the lamp.
30.00
4.80
3.00
0.30
0.03
Correct answer is A
No explanation has been provided for this answer.
The following are derived units EXCEPT
kg m-3
N
Ns
m3
kg
Correct answer is E
No explanation has been provided for this answer.
1.32 × 10-6m
2.97 × 10-6m
3.30 × 10-6m
6.82 × 10-6m
8.01 × 10m-6
Correct answer is A
No explanation has been provided for this answer.