Two capacitors are connected in parallel and the energy stored is 18 J, when a potential difference of 6000 V is applied across the combination. With the same capacitors connected in series, the energy stored is 4 J from the same potential difference. what are the individual capacitances?
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Two capacitors of capacitance `C_(1)` and `C_(2)` are connected in parallel and a charge Q is delivered to the combination. The two are then disconnec
Correct Answer - `V_(1)=Q//C_(1),V_(2)=Q//C_(2),` charges are `q_(1),q_(2)-q_(2),+q_(2)-q_(2),q_(1),` where `q_(2)=Q//2` and `q_(1)=Q(C_(1)-C_(2))//(C_(1)+C_(2))`
2 Answers 1 views
A beam of electrons is under the effect of potential difference of `1.36xx10^(4)` volt applied across two parallel plates `4 cm` apart and a magnetic
Correct Answer - `1.7 xx 10^(8) ms^(-1), 0.4834 m`
2 Answers 15 views
Two, capacitors `A` and `B` are connected in series across a `100 V` supply and it is observed that the potential difference across them are `60 V` an
Correct Answer - `0.16muF, 0.24 muF`
2 Answers 1 views
Two parallel plate capacitors of capacitance `C` and `2C` are connected in parallel then following steps are performed. (i) A battery of voltage `V` i
Correct Answer - `3/2 CV^(2), -1/2(K-1)CV_(0)^(1), 1/6(K+2)(K-1)CV^(2)`
2 Answers 1 views
A charge `200mC` is imparted to .each of the two identical parallel plate capacitors connected in parallel. At `t = 0`, the plates ofboth the capacito
Correct Answer - `2muA`
2 Answers 3 views
Two capacitors of equal capacitance when connected in series hae net capacitance `C_(1)` and when connected in parallel have net capacitance `C_(2)` w
Correct Answer - `C_(1)//C_(2)=1//4`
2 Answers 1 views
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`
2 Answers 1 views
Three capacitors each of capacitance 9 pF are connected in series. (a) What is the total capacitance of the combination ? (b) What is the potential di
Correct Answer - 3pF, 40V
2 Answers 1 views
Two capacitors of capacitances `20 .0pF` and `50.0pF ` are connected in series with a `6.00V bettery . Find (a )the potential difference across each c
Correct Answer - (i). 1.71 V, 4.29V (ii). `184pJ,73.5pJ`
2 Answers 1 views
Three capacitors of 10,15 and 30 `muF` are connected in series and on this combination a potential difference of 60 V is applied. Calculate the charge
Correct Answer - `q_(1)=q_(2)=q_(3)=3xx10^(-4)C,V_(1)=30V,V_(2)=20V,V_(3)=10V, U_(1)=4.5xx10^(-3)J,U_(2)=3.0xx10^(-3)J,U_(3)=1.5xx10^(-3)J`
2 Answers 1 views