Heat produced in a resistance according to which law?
Options
(a) Thomson’s law of heating (b) Faraday’s law (c) Joule’s law of heating (d) Ohm’s law
Correct Answer:
Joule’s law of heating
Explanation:
According […]
An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor of capacitance 2 μF. The impedence of the circuit is
Options
(a) π/5000 (b) 1000/π (c) 500π (d) 5000/π
Correct […]
The angle between the vectors (i+j) and (j+k) is
Options
(a) 90⁰ (b) 60⁰ (c) 30⁰ (d) 45⁰
Correct Answer:
60⁰
Explanation:
A = i + j, B = j + k
A . […]
A charge of 100 μC has a potential at a distance of 9 m is
Options
(a) 10⁶ V (b) 10⁻⁵ V (c) 10⁵ V (d) 10⁻⁶ V
Correct Answer:
10⁵ V
Explanation: […]
A nuclear reaction is given as 4 ₁H¹→₂He⁴+₀e¹+energy Mention the type of reaction.
Options
(a) fusion (b) fission (c) just a chemical reaction (d) None of these
Correct Answer:
fusion
Explanation:
No explanation […]
Initial pressure and volume of a gas are P and 800cc. If the final volume is 100cc and γ=5/3, then the final pressure equals to
Options
(a) P (b) 8P (c) 16P (d) […]
An atom bomb works on the principle of
Options
(a) nuclear fission (b) nuclear fusion (c) α-decay (d) β-decay
Correct Answer:
nuclear fission
Explanation:
No explanation available. Be the first to write the […]
A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m. The power of the source is
Options
(a) 20 W (b) 25 W (c) 40 W […]
If a given volume of water in a 220V heater is boiled in 5 min, then same volume of water in 110V heater can be boiled in what time interval?
Options
(a) 20 […]
The value of Poisson’s ratio lies between
Options
(a) 0 to 0.5 (b) 0.5 to 1 (c) (-1 to 1) (d) (-1 to 1.5)
Correct Answer:
0 to 0.5
Explanation:
No explanation available. […]
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