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Physics with Akhtiar Ali Bullo
@bulloakhtiar
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1:06
The center of gravity of a triangular plate lies at the
2 days ago
1:04
When two semiconductors one p-type and the other n-type are brought in contact, they form a pn junction which acts like a
4 days ago
1:06
The value of potential difference across the depletion region for the case of germanium is
4 days ago
3:00
A 12 ohm resistor is connected in series with a parallel combination of 10 resistors each of 200 ohm. what is the net resistance of the circuit?
5 days ago
0:58
Trigonometric ratios and their values in short
7/10/2025
1:58
In common-base configuration emitter current IE=1mA and collector current Ic=0.95mA.The value of base current is
7/10/2025
1:31
In p type semiconductors majority and minority charge carriers are respectively
7/9/2025
0:41
What is zeeman effect ?
7/9/2025
0:57
The device used for conversion of AC into DC is called
7/8/2025
1:08
The current gain B of a transistor can be given by the expression
7/7/2025
1:09
For a normal biased transistor,the emitter current IE is given by the relation
7/6/2025
3:41
If collector current Ic=4 mA and current gain B=45.Then emitter current Ie is
7/5/2025
1:06
For a npn transistor the p-type crystal only acts as a
7/3/2025
1:06
The emitter, collector and base currents IE,IC and IB respectively are related as
7/2/2025
0:55
The number of junctions in a semiconductor diode
7/2/2025
0:50
A diode as rectifier converts
7/1/2025
0:51
Amorphous physics in short
6/30/2025
1:55
PN junction diode works as insulator if connected
6/29/2025
0:40
Transistors are made from
6/29/2025
1:15
The si unit of current gain is
6/28/2025
2:34
Least doped region in a transistor is
6/28/2025
5:31
A 40Ω resistor is to be wound from platinum wire 0.1mm in diameter.How much wire is needed ? Given ( ρ = 11×10⁻⁸ Ωm )
6/27/2025
0:38
Can charge reside without mass ?
6/26/2025
6:59
Resistors of 20Ω,40Ω and 50Ω are connected in parallel across a 50V power source.Find the equivalent resistance of the set and the current in each resistor ?
6/25/2025
3:51
A battery of 24V is connected to a 10Ω load and a current of 2.2A flows.Find the internal resistance of the battery and its terminal voltage
6/24/2025
3:16
A source of what potential difference is needed to charge a battery of 20V emf and internal resistance of 0.1Ω at a rate of 70A
6/24/2025
3:40
Currents of 3A and 1.5A flow through two wires , one that has a potential difference of 60V across its ends and another that has a potential difference of 120V across its ends. Compare the rate at which energy pass through each wire
6/21/2025
8:02
A current of 6A is drawn from a 120V line,What power is being developed ? How much energy in joule and in kilowatt hour is expended if the current is drawn steadily for one week
6/20/2025
0:39
Why electric potential is scalar quantity?
6/20/2025
6:12
A silver wire 2m long is to have a resistance of 0.5Ω.what should its diameter be ? Given (ρ=1.52×10^-8Ωm)
6/19/2025