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  2. AP Physics C E M
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Steps to determine magnetic force direction using the right-hand rule?

  1. Point thumb in current direction. 2. Fingers in magnetic field direction. 3. Palm shows force direction.
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Steps to determine magnetic force direction using the right-hand rule?

  1. Point thumb in current direction. 2. Fingers in magnetic field direction. 3. Palm shows force direction.

Steps to calculate the net force on a conducting loop in a magnetic field?

  1. Calculate the magnetic force. 2. Identify other external forces. 3. Sum all forces to find the net force.

Steps to predict motion of a conducting loop using Newton's Second Law?

  1. Calculate net force. 2. Determine acceleration using a⃗=F⃗netm\vec{a} = \frac{\vec{F}_{net}}{m}a=mFnet​​. 3. Use kinematics equations.

Steps to calculate induced emf in a loop with changing magnetic flux?

  1. Calculate magnetic flux Φ\PhiΦ. 2. Apply Faraday's Law: ϵ=−dΦdt\epsilon = -\frac{d\Phi}{dt}ϵ=−dtdΦ​.

Steps to determine the magnetic force on a current-carrying wire?

  1. Determine the current I. 2. Find the magnetic field B. 3. Use F⃗B=∫I(dl⃗×B⃗)\vec{F}_{B}=\int I(\vec{dl} \times \vec{B})FB​=∫I(dl×B) to calculate the force.

What is the effect of increasing the magnetic field strength?

Increases the induced current and magnetic force.

What happens if a conducting loop moves faster through a magnetic field?

Higher induced current and stronger magnetic force.

What is the effect of increasing the number of turns in a conducting loop?

Higher induced current due to increased magnetic flux.

What happens when the plane of the loop is perpendicular to the magnetic field lines?

Maximum induced current and force occur.

What happens when the direction of the current is reversed?

The direction of the magnetic force is reversed.

Define magnetic force.

The force exerted on a moving charge or current-carrying conductor in a magnetic field.

What is induced current?

Current generated in a conductor due to a changing magnetic field.

Define magnetic flux.

A measure of the quantity of magnetism, being the number of magnetic field lines passing through a surface.

What is the meaning of dl⃗\vec{dl}dl in the formula for magnetic force?

dl⃗\vec{dl}dl is the infinitesimal displacement vector of the conductor.

Define the term 'external magnetic field'.

A magnetic field originating from a source outside the conducting loop being considered.