A collimated beam of charged and uncharged particles is directed towards a hole marked P on a screen as shown below. If the electric and magnetic fields as indicated below are turned on

only neutral particles will go through P .

only particles with speed E / B will go through the hole P .

only charged particles with speed E / B and neutral particles will go through P .

only positively charged particles with speed E / B and neutral particles will go through P .

Find the magnetic field at P due to the arrangement as shown.

μ 0 i 2 π d ( 1 - 1 2 ) &otimes;

μ 0 i 2 π d ( 1 + 1 2 ) &otimes;

E M B I B E

Physics Crash Course JEE Advanced>Chapter 15 - Magnetic Effects of Current and Magnetism>Exercise 1>Q 40

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Physics

IMPORTANT

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If a charged particle at rest experiences no electromagnetic force,

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Important Questions on Magnetic Effects of Current and Magnetism

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Physics Crash Course JEE Advanced>Chapter 15 - Magnetic Effects of Current and Magnetism>Exercise 1>Q 41

Consider three quantities

x = \frac{E}{B}, y = \sqrt{\frac{1}{μ_{0} ε_{0}}}

and

z = \frac{l}{C R}

. Here,

l

is the length of a wire,

C

is the capacitance and

R

is the resistance. All other symbols have standard meanings.

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Physics Crash Course JEE Advanced>Chapter 15 - Magnetic Effects of Current and Magnetism>Exercise 1>Q 42

If a charged particle kept at rest experiences an electromagnetic force,

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Physics Crash Course JEE Advanced>Chapter 15 - Magnetic Effects of Current and Magnetism>Exercise 1>Q 43

Two proton beams are moving in parallel direction. Which of the following statements are correct (multiple options may be correct)

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Physics Crash Course JEE Advanced>Chapter 15 - Magnetic Effects of Current and Magnetism>Exercise 1>Q 44

A current carrying wire of length $L$ is suspended horizontally by a spring of force constant $K$ as shown. The system is in equilibrium. A magnetic field $B$ is switched on into the plane of paper suddenly. Which of the following statements is correct?

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