A beam of cathode rays is subjected to crossed Electric (E) and Magnetic field (B). The fields are adjusted such that the beam is not deflected. The specific charge of the cathode rays is given by (where V is the potential difference between cathode and anode)
A
E² / 2VB²
B
B² / 2VE²
C
2VB² / E²
D
2VE² / B²

Question

A beam of cathode rays is subjected to crossed Electric (E) and Magnetic field (B). The fields are adjusted such that the beam is not deflected. The specific charge of the cathode rays is given by (where V is the potential difference between cathode and anode)

A

E² / 2VB²

B

B² / 2VE²

C

2VB² / E²

D

2VE² / B²

Accepted Answer

E² / 2VB²

Answer

B² / 2VE²

Answer

2VB² / E²

Answer

2VE² / B²

AIPMT PRELIMS 2010 Physics Cathode Rays MCQ Question

Correct Answer

Detailed Explanation

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