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.
The following are some units i. Ns What is the unit of latent heat?
ii. Mm
iii. Nm-2
iv. JKg-1
i
ii
iii
iv
Correct answer is D
| L | = | specific latent heat of a substance |
L = \(\frac{Q}{M}\)
i.e unit is JKg-1