A magnet is moved through a coil of wire. The e.m.f. produced in the wire depends on
the number of turns in the coil
the strength of the magnet
the speed at which the magnet is moved
all of the above
none of the above
Correct answer is D
No explanation has been provided for this answer.
24k
55k
40k
26k
32k
Correct answer is A
Energy (kWhr) = 1 x 200 x 24 x 10-3
= 4.8kWhr
1 kWhr. cost 5k
4.8kwhr. will cost (5 x 4.8)k
= 24 kobo
4A
36A
12A
24A
10A
Correct answer is C
since they are in parallel, the same voltage across
= I1 = I2 = I3
I1 = \(\frac{V}{R_1}\)
\(\frac{60}{5}\) = 12A
less than R1
greater than R2
the sum of R1 and R2
the difference of R2 and R1
greater thanR1 but less than R2
Correct answer is A
No explanation has been provided for this answer.
The heat from the sun reaches the earth by the process
insulation
precipitation
conduction
convection
radiation
Correct answer is E
No explanation has been provided for this answer.