Physics-
General
Easy

Question

In the adjoining figure, four capacitors are shown with their respective capacities and the P.D. applied. The charge and the P.D. across the 4 mu F capacitor will be

  1. 600 mu C semicolon   150   v o l t s    
  2. 300 mu C semicolon   75   v o l t s    
  3. 800 mu C semicolon   200   v o l t s    
  4. 580 mu C semicolon   145   v o l t s    

The correct answer is: 580 mu C semicolon   145   v o l t s


    Total capacitance fraction numerator 1 over denominator C end fraction equals fraction numerator 1 over denominator 20 end fraction plus fraction numerator 1 over denominator 8 end fraction plus fraction numerator 1 over denominator 12 end fraction Þ C equals fraction numerator 120 over denominator 31 end fraction mu F
    Total charge Q equals C V equals fraction numerator 120 over denominator 31 end fraction cross times 300 equals 1161 mu C
    Charge, through 4 mF condenser equals fraction numerator 1161 over denominator 2 end fraction equals 580 mu C
    and potential difference across it equals fraction numerator 580 over denominator 4 end fraction equals 145 V

    Related Questions to study

    General
    Physics-

    Four plates of the same area of cross-section are joined as shown in the figure. The distance between each plate isd. The equivalent capacity across A and B will be

    Four plates of the same area of cross-section are joined as shown in the figure. The distance between each plate isd. The equivalent capacity across A and B will be

    Physics-General
    General
    Physics-

    Three equal capacitors, each with capacitance C are connected as shown in figure. Then the equivalent capacitance between A and B is

    Three equal capacitors, each with capacitance C are connected as shown in figure. Then the equivalent capacitance between A and B is

    Physics-General
    General
    Physics-

    Four condensers are joined as shown in the adjoining figure. The capacity of each is8 mu F. The equivalent capacity between the points Aand B will be

    Four condensers are joined as shown in the adjoining figure. The capacity of each is8 mu F. The equivalent capacity between the points Aand B will be

    Physics-General
    parallel
    General
    Physics-

    A parallel plate condenser is filled with two dielectrics as shown. Area of each plate is A   m e t r e to the power of 2 end exponentand the separation ist   m e t r e. The dielectric constants are k subscript 1 end subscript and k subscript 2 end subscript respectively. Its capacitance in farad will be

    A parallel plate condenser is filled with two dielectrics as shown. Area of each plate is A   m e t r e to the power of 2 end exponentand the separation ist   m e t r e. The dielectric constants are k subscript 1 end subscript and k subscript 2 end subscript respectively. Its capacitance in farad will be

    Physics-General
    General
    Physics-

    Four capacitors of each of capacity 3 mu Fare connected as shown in the adjoining figure. The ratio of equivalent capacitance between A and B and between A and C will be

    Four capacitors of each of capacity 3 mu Fare connected as shown in the adjoining figure. The ratio of equivalent capacitance between A and B and between A and C will be

    Physics-General
    General
    Physics-

    A capacitor of capacity C subscript 1 end subscriptis charged to the potential of V subscript o end subscript. On disconnecting with the battery, it is connected with a capacitor of capacity C subscript 2 end subscript as shown in the adjoining figure. The ratio of energies before and after the connection of switch S will be

    A capacitor of capacity C subscript 1 end subscriptis charged to the potential of V subscript o end subscript. On disconnecting with the battery, it is connected with a capacitor of capacity C subscript 2 end subscript as shown in the adjoining figure. The ratio of energies before and after the connection of switch S will be

    Physics-General
    parallel
    General
    Physics-

    If three capacitors each of capacity 1 mu Fare connected in such a way that the resultant capacity is1.5 mu F, then

    If three capacitors each of capacity 1 mu Fare connected in such a way that the resultant capacity is1.5 mu F, then

    Physics-General
    General
    Physics-

    In the circuit diagram shown in the adjoining figure, the resultant capacitance between P and Q is

    In the circuit diagram shown in the adjoining figure, the resultant capacitance between P and Q is

    Physics-General
    General
    Physics-

    In an adjoining figure are shown three capacitors C subscript 1 end subscript,C subscript 2 end subscript and C subscript 3 end subscript joined to a battery. The correct condition will be (Symbols have their usual meanings)

    In an adjoining figure are shown three capacitors C subscript 1 end subscript,C subscript 2 end subscript and C subscript 3 end subscript joined to a battery. The correct condition will be (Symbols have their usual meanings)

    Physics-General
    parallel
    General
    Physics-

    Four condensers each of capacity 4 mu F are connected as shown in figure. V subscript P end subscript minus V subscript Q end subscript equals 15 v o l t s. The energy stored in the system is

    Four condensers each of capacity 4 mu F are connected as shown in figure. V subscript P end subscript minus V subscript Q end subscript equals 15 v o l t s. The energy stored in the system is

    Physics-General
    General
    Physics-

    Five capacitors of 10 mu Fcapacity each are connected to a d.c. potential of 100   v o l t s as shown in the adjoining figure. The equivalent capacitance between the points AandB will be equal to

    Five capacitors of 10 mu Fcapacity each are connected to a d.c. potential of 100   v o l t s as shown in the adjoining figure. The equivalent capacitance between the points AandB will be equal to

    Physics-General
    General
    Physics-

    n identical condensers are joined in parallel and are charged to potentialV. Now they are separated and joined in series. Then the total energy and potential difference of the combination will be

    n identical condensers are joined in parallel and are charged to potentialV. Now they are separated and joined in series. Then the total energy and potential difference of the combination will be

    Physics-General
    parallel
    General
    Physics-

    Three capacitors are connected to D. C. source of 100   v o l t s shown in the adjoining figure. If the charge accumulated on plates of C subscript 1 end subscript comma   C subscript 2 end subscriptand C subscript 3 end subscript are q subscript a end subscript comma   q subscript b end subscript comma   q subscript c end subscript comma q subscript d end subscript. q subscript e end subscriptandq subscript f end subscript respectively, then

    Three capacitors are connected to D. C. source of 100   v o l t s shown in the adjoining figure. If the charge accumulated on plates of C subscript 1 end subscript comma   C subscript 2 end subscriptand C subscript 3 end subscript are q subscript a end subscript comma   q subscript b end subscript comma   q subscript c end subscript comma q subscript d end subscript. q subscript e end subscriptandq subscript f end subscript respectively, then

    Physics-General
    General
    Physics-

    A parallel plate capacitor with air as medium between the plates has a capacitance of 10 mu F. The area of capacitor is divided into two equal halves and filled with two media as shown in the figure having dielectric constant k subscript 1 end subscript equals 2and k subscript 2 end subscript equals 4. The capacitance of the system will now be

    A parallel plate capacitor with air as medium between the plates has a capacitance of 10 mu F. The area of capacitor is divided into two equal halves and filled with two media as shown in the figure having dielectric constant k subscript 1 end subscript equals 2and k subscript 2 end subscript equals 4. The capacitance of the system will now be

    Physics-General
    General
    Physics-

    Four plates of equal area Aare separated by equal distances d and are arranged as shown in the figure. The equivalent capacity is

    Four plates of equal area Aare separated by equal distances d and are arranged as shown in the figure. The equivalent capacity is

    Physics-General
    parallel

    card img

    With Turito Academy.

    card img

    With Turito Foundation.

    card img

    Get an Expert Advice From Turito.

    Turito Academy

    card img

    With Turito Academy.

    Test Prep

    card img

    With Turito Foundation.