Three capacitor of capacity 1,2 and `3muF` are connecte3d such that second and third are in series and the first one in parallel. Calculate the resultant capacity.
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A body is freely dropped from a height h above the ground. Find the ratio of distances fallen in first one second, first two seconds, first three seco
From second equation of motion i.e. `h=(1)/(2)"gt"^(2)(h=ut+(1)/(2)"gt"^(2)` and u=0) `h_(1):h_(2):h_(3)......=(1)/(2)g(1)^(2):(1)/(2)g(2)^(2):(1)/(2)g(3)^(2)=1^(2):2^(2):3^(2)......=1:4:9....` Now from the of distance travelled in `n^(th)` second `S_(n)=u+(1)/(2)a(2n01)` here u=0, a=g `S_(n)=(1)/(2)g(2n-1)` or `S_(1):S_(2):S_(3):......=(1)/(2)g(2xx1-1):(1)/(2)g(2xx2-1):(1)/(2)g(2xx3-1)=1:3:5.....`
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A particle revolving in a circular path completes first one third of circumference in 2 sec, while next one third in 1 sec. The average angular veloci
`theta_(1)=(2pi)/(3)and theta_(2)=(2pi)/(3)"total time T"=2+1=3s therefore ltomega_(av)gt(theta_(1)+theta_(2))/(T)=((2pi)/(3)+(2pi)/(3))/(3)=((4pi)/(3))/(3)=(4pi)/(9)"rad/s"`
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Exactly 0.4 faraday electric charge is passed through three electrolytic cells in series, first containing `AgNO_(3)`, second `CuSO_(4)` and third `Fe
The cathodic reaction in the cells are respectively. `underset(("1 mole"),(108 g))(Ag^(+))+underset(("1 mole"),("1 F"))(e^(-)) rarr Ag` `underset(("1 mole"),(63.5 g))(Cu^(2+))+underset(("2 mole"),("2 F"))(2e^(-)) rarr Cu` and `underset(("1 mole"),(56 g))(Fe^(3+))+underset(("3 mole"),("3 F"))(3e^(-)) rarr Fe`...
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Therr capacitors of capacitance 4,3 and 2 `muF` are connected in such a way that the first and second are in series and the third in parallel with the
Correct Answer - `3.71muF`
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Three capacitors of capacitance 1,2 and ,3 `muF` are connected in such a way that the first and the second are in parallel anad the third is in series
Correct Answer - `1.5muF;100muCon1mu,F,200muC on2muF` and `300muCon3muF`
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A resistor R and `2muF` capacitor in series are connected to a 220V dc supply. Across the capacitor is a neon bulb that strikes at 120V. Calculate the
Correct Answer - `2.73 MOmega`
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If the wavelength of the first member of Balmer series in hydrogen spectrum is 6563 Å, calculate the wavelength of the first member of Lymen series in
Correct Answer - 1215.14 Å
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The capacities of three capacitors are in the ratio of `1 : 2 : 3`. Their equivalent capacity in parallel is greater than their equivalent capacity in
Correct Answer - 1pF,2pF,3pF
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Three capacitors of `3muF` each are connected in series. This combination is connected in series to another combination of three capacitors of `1muF`
Correct Answer - 0.75`muF`
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The plates of a parallel plate capacitor have an area of `100cm^(2)` each and area separated by 2.5 mm. the capacitor is charged to 200V. Calculate th
Correct Answer - `7.08xx10^(-7)J`
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