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A cylinder of height  H ' and radius of cross-section r ' is kept in uniform electric field E→ as shown in figure. The magnitude of flux that enters from left half of cylinder is

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Important Questions on Electric Charges and Fields

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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.5>Q 23
Charge q is placed at the center of a cube of side l. Find electric flux through each of six faces.
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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.5>Q 24

Find the flux through the disc.

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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.5>Q 25
A charge q is placed at the corner of a regular cube of side I. Find the electric flux passing through the cube.
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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.5>Q 26
A charge q is placed at the corner of a regular cube of side I. Find the electric flux passing through each of the adjacent face.
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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.5>Q 27
A charge q is placed at the centre of face of a regular cube of side ℓ. Find the electric flux passing through the cube.
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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.5>Q 28
A charge q is placed at a point exactly above the centre of square (of side a) at a distance a2. The flux passing through square will be
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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.5>Q 29
The electric field due to an infinitely long, straight line of charge with uniform charge density λ points straight away from the line and has magnitude E=λ/2πε0r, where r is the distance from the wire. Calculate the flux of this electric field through a right cylinder of height h and radius R, co-axial with the charged line. Repeat the calculation for a cylinder of radius 2 R.
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Gamma Question Bank for Engineering Physics>Chapter 15 - Electric Charges and Fields>EXERCISE 1.6>Q 30
How much charge is contained in the pillbox?