A long solenoid has 70 {turns} \/ {cm} and carries current I. An electron moves within the solenoid in a circle of radius 2.5 {cm} perpendicular to the solenoid axis. If the speed of the electron is 4.4 \times 10^{6} {m} \/ {s} then the current I in the solenoid is (Take \mu_{0}=4 \pi \times 10^{-7} {SI} unit, mass of electron =9 \times 10^{-31} {kg}, charge of electron = 1.6 \times 10^{-19} {C})

TS EAMCET 18-July-2022 Shift 2 Solved Paper

Section: Physics

Question : 109 of 160

Marks: +1, -0

A long solenoid has 70turns∕cm and carries current I. An electron moves within the solenoid in a circle of radius 2.5cm perpendicular to the solenoid axis. If the speed of the electron is 4.4×106m∕s then the current I in the solenoid is
(Take µ0=4π×10−7SI unit, mass of electron =9×10−31kg, charge of electron = 1.6×10−19C)

98.5mA
112.5mA
125mA
175.0mA

Validate

Go to Question:

Prev Question

Next Question