Fields

$0.25g$

$0.50g$

$2.0g$

$4.0g$

$m\,s^{-1}$

$m\,s^{-2}$

$kg\,m\,s^{-1}$

$J\,m^{-1}$

The direction of the force on a positive charge

The direction of the force on a small test mass

Tangent to the equipotential surface

Opposite to the direction of the gravitational force

$1.0 \times 10^{-6}\,C$

$1.0 \times 10^{-9}\,C$

$1.0 \times 10^{-12}\,C$

$1.0 \times 10^{9}\,C$

A large repulsive force

A large attractive force

Zero net force (though it may be polarized)

A force that makes it orbit the field source

The lines go from one charge to the other

The lines bend away from each other

The lines form closed loops

The lines are straight and parallel

The path a stationary positive charge would follow

The path a free North pole would follow

A line of constant electric potential

The path of an electron in a vacuum

It is halved

It remains the same

It is doubled

It is quadrupled

Dependent on its speed

Zero

Maximum

Dependent on its length

Positive charge has more potential energy

Negative charge has more potential energy

Positive charge has less potential energy

Test mass has more kinetic energy

Varying

Radial

Uniform

Zero

$W = q(V_2 - V_1)$

$W = q / (V_2 - V_1)$

$W = (V_2 - V_1) / q$

$W = q^2(V_2 - V_1)$

Moving a magnet towards the loop

Rotating the loop in a uniform magnetic field

Shrinking the loop area in a uniform magnetic field

Moving the loop at a constant velocity in a region with no magnetic field

To provide the input magnetic field

To provide the output voltage to the load

To laminate the iron core

To turn the AC into DC

$0.4 \, Wb$

$4.0 \, Wb$

$10 \, Wb$

$0 \, Wb$