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Physics with Akhtiar Ali Bullo
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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
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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
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A certain battery is rated at 80 ampere hour.How many coulomb of charge can this battery supply ?
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A silver wire 2m long is to have a resistance of 0.5Ω.what should its diameter be ? Given (ρ=1.52×10^-8Ωm)
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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
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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
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The graph between voltage and current in s.i units is shown in figure below then resistance will be
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A series circuit consisting of three resistors having resistances of 40 ohm, 50 ohm and 20 ohm respectively is connected across a voltage source of 120V as shown in the figure below. Find the current in the circuit and the potential difference across each
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Problem No 14.4 : A Coil of 0.1m X 0.1m and of 200 turns ........
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Problem No 16. 6 : A 10 mH , 20 ohm coil is connected across 240 V and .....
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Determine the gravitational attraction between the proton and the electron in a hydrogen atom,assuming that the electron describes a circular orbit with a radius of 0.53×10⁻¹⁰ m.mass of electron=9.1×10⁻³¹ kg,mass of proton=1.67×10⁻²⁷ kg
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Problem No 14.10 : The resistance of a Galvanometer Coil is 10 .......
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Problem No 14.5 : A Power line 10.0 m high carries a current 200 A. .....
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At what distance from the centre of the earth does the gravitational acceleration have one half the value that it has on the earth's surface ?
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Problem No 15.14 : The back emf in a motor is 120 V when the .......
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Problem No 16.1 : An alternating current is represented by the equation ......
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DC Current -01- Electric Current From Positive and Negative Electric Charges
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Problem No 14.8 : A Galvanometer having an internal resistance .....
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Static Electricity -02- Coulomb's Law Concept
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Problem No 15.3 : A coil of wire has 10 loops . Each loop has ......
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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 ?
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Why electric potential is scalar quantity?
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