Charges on Large and Parallel Conducting Plates
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- Electric field due to induced charges on S1 and Q is Non-zero at point P.
- The charges appearing on S2 are uniformly distributed.
- The induced charges appearing on S1 are non-uniformly distributed.
- The induced charges appearing on S1 are uniformly distributed.
- 4ϵ0Ad
- 3ϵ0Ad
- 2ϵ0Ad
- ϵ0Ad
- Decreases
- Increases
- Remains unchanged
- Increases if q3 is of the same sign as q1 and decreases if q3 is of opposite sign
Two protons A and B are placed in between the two plates of a parallel plate capacitor charged to a potential difference V as shown in the figure. The forces on the protons due to capcitor plates are
- Equal in magnitude and opposite in direction
Equal in magnitude and in same direction
Unequal in magnitude and opposite in direction
Unequal in magnitude and different in direction
When a dielectric slab of thickness 6cm is introduced between the plates of parallel plate condenser, it is found that the distance between the plates has to be increased by 4cm to restore the capacity to original value. The dielectric constant of the slab is
- 1.5
- 23
- 3
- 4
Three identical plates are given charges as shown in figure. Charge flown through switch from middle plate when it is closed is.
- 3Q
- −2Q
- 2Q
- 0
- −40εo
- 40εo
- zero
- Insufficient data
- 25 μF
- 20 μF
- 20 μF
- 40 μF
- Decrease, if sheet is metal
- May increase or may decrease if sheet is dielectric
- Increases, irrespective of sheet is dielectric or conducting
- Become 1K times, its whole space is filled by dielectric of dielectric constant (K)
- -3 C
- 3 C
- -9 C
- 0 C
- 3ϵ0A5d
- 5ϵ0A3d
- 4ϵ0Ad
- ϵ0A4d
Force acting upon a charged particle kept between the plates of a charged condenser is F. If one plate of the condenser is removed, then the force acting on the same particle will become:
0
F/2
F
2F
Force acting upon a charged particle kept between the plates of a charged condenser is F. If one plate of the condenser is removed, then the force acting on the same particle will become:
0
F/2
F
2F
- Unequal
- Zero
- Can't say