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Assertion (A): A magnetic field can change the… | StemPy Lab
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Assertion (A): A magnetic field can change the direction of the velocity of a charged particle but not its speed. Reason (R): The magnetic force on a moving charge is always at right angles to its velocity.
Physics
Medium
High School (11–12)
Electricity & Magnetism › Magnetic Effects of Current
Board Exam
AP
A-Level
IB
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Assertion (A): A magnetic field can change the direction of the velocity of a charged particle but not its speed. Reason (R): The magnetic force on a moving charge is always at right angles to its velocity.
Both A and R are true, and R explains A
Both A and R are true, but R does not explain A
A is true and R is false
A is false and R is true
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