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Physics with Akhtiar Ali Bullo
@bulloakhtiar
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2:51
A coil stores energy in form of electric potential energy of 0.2J when it carries a current of 2A.Calculate the inductance of coil.
14 hours ago
2:42
Two coils are placed close to each other.If a change in current of 3 A/s in the first coil induces an EMF of 4 V in the second coil, calculate the mutual inductance.
4 days ago
6:18
What is flux density at a distance of 0.1m in air from a long straight conductor carrying a current of 6.5A. Calculate the force per on a similar parallel conductor at a distance of 0.1m from the first and carrying a current of 3A .
6 days ago
6:56
How can we get scalar or vector through product of different types
1 week ago
25:07
Physics Mcqs 2026_ Top 50 physics mcqs _All test physics mcqs
2 weeks ago
3:49
Compute the magnitude of the magnetic field of a long , straight wire carrying a current of 1A at distance of 1m from it.Compare it with earth's magnetic field.
5 weeks ago
3:19
A wire 1.80m long carries a current of 13.0A and makes an angle of 35.0⁰ with a uniform magnetic field of magnitude B=1.50T.Calculate the magnetic force on the wire
2 months ago
0:37
Abbreviation of AM and FM_Full form of AM and FM_ Acronym of AM and FM
2 months ago
9:12
A carnot engine operates between the temperatures 850K and 300K.the engine performs 1200J of work in each cycle, which takes 0.25 sec (a) What is the efficiency of this engine ? (b) What is the average power of this engine ? (c) How much energy is extra
2 months ago
4:18
Temperature difference between the surface water and bottom water in Manchester lake might be 5 degree centigrade Assuming the surface water to be at 20 degree celsius.What highest efficiency a steam engine could have if it operates between these two tem
2 months ago
2:24
An inductor with an inductance of 0.02H has a current flowing through it of 2A.calculate the energy stored in the inductor. Twelve class physics numericals Inter class physics numericals 12 class physics numericals Physics class 12 numericals New sind
1 day ago
2:20
A coil with an inductance of 0.5H experiences a rate of change of current of 2A/s.Calculate the induced EMF in the coil
6 days ago
1:01
Water waves are
1 week ago
0:49
Perpendicular/Base is equal to _ P/B is equal to
1 week ago
0:53
What is jerk _ what is jolt in physics ?
4 weeks ago
3:59
A moving coil galvanometer has resistance of 50 ohms and it gives full scale deflection at 4 mA current. A voltmeter is made using this galvanometer and a 5 kilo ohm resistance. Calculate the maximum voltage that can be measured using this voltmeter
2 months ago
5:14
The poles of a horse shoe magnet measures 8cm × 3.2cm the magnetic flux density between the magnet poles is 80mT.Outside of the magnet the magnetic flux density is zero.Calculate the magnetic flux between the poles of a magnet.
2 months ago
0:50
Abbreviation for radar_ Acronym of radar _ Full form of radar
2 months ago
6:13
A heat engine performs work of 0.4166 watts in one hour and rejects 4500J of heat to the sink.What is the efficiency of engine ?
2 months ago
3:39
In a high pressure steam turbine engine, the steam is heated to 600 degree centigrade and exhausted at about 90 degree centigrade.what is the highest possible efficiency of any engine that operates between these two temperatures?
2 months ago
4:09
A transformer has 200 turns in the primary coil and 400 turns in the secondary coil.If the primary voltage is 120V, calculate the secondary voltage for step up transformer
4 days ago
3:45
Two coils are placed adjacent to each other and a change in current in the first coil induces an emf of 0.5V in the second coil. If the mutual inductance is 0.2H ,Calculate the rate of change of current in the first coil
6 days ago
0:57
What is charge density ?
1 week ago
1:31
A central force
2 weeks ago
5:44
Find the current in a long straight wire that would produce a magnetic field twice the strength of the Earth's at a distance of 5.0 cm from the wire.Magnetic field of Earth= 5.0×10^-5 T
5 weeks ago
6:34
A solenoid has length L=1.23m and inner diameter d=3.55cm and it carries a current I=5.57A.It consists of five close packed layers, each with 850 turns along length L.What is B at its center ?
2 months ago
6:28
An aluminum window has a width of 60cm and length of 85cm as shown in the figure. a.When the window is closed the magnetic flux density is 1.8×10^-4 T is normal to window. b.Calculate the magnetic flux through the window.
2 months ago
4:37
A carnot engine absorbs 52kJ as heat and exhaust 36kJ as heat in each cycle. Calculate: (a) The engine efficiency (b) The work done per cycle in kilojoules
2 months ago
6:44
A heat engine works at the rate of 500kW.The efficiency of the engine is 30%.Calculate the loss of heat per hour.
2 months ago
4:31
One kilogram of ice at 0 degree centigrade is melted and converted to water at 0 degree celsius.Compute its change in entropy.
2 months ago