in an ac current, current can be negative. a.true b.false

In an AC current, current can be negative.

A. TrueB. False

True

False

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To find the current at a given time in a phasor diagram, we…..A. compute the length of

the phasor.B. compute the angular

frequency of the phasor.C. project the phasor onto

the y-axis.D. project the phasor onto

the x-axis.E. set our phasors on stun.

compute

the le

ngth of t

h...

compute

the an

gular fr..

.

project

the phaso

r onto

t..

project

the phaso

r onto

t..

set o

ur phaso

rs on st

un.

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It is possible for the average of an AC current to be zero, (assuming there is current).

A. TrueB. False

True

False

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It is possible for the rms of an AC current to be zero, (assuming there is current).

A. TrueB. False

True

False

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It is possible for the actual voltage to be greater than the rms voltage.

A. TrueB. False

True

False

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In an alternating current scenario, which of the following pairs are in phase?

A. Resistor’s V and I.B. Inductor’s V and I.C. Capacitor’s V and I.D. Both A and B.E. Both B and C.F. Both A and C.G. All of A, B, and C.H. None of the above.

Resisto

r’s V and I.

Inductor’s

V and I.

Capacitor’s

V and I.

Both A and B.

Both B and C.

Both A and C.

All of A

, B, a

nd C.

None of the ab

ove.

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With a sinusoidal current, since V=IR for a resistor, current and voltage are…

A. In phase.B. Out of phase by 90⁰.C. Out of phase by 180⁰.D. Out of phase by 45⁰.

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With a sinusoidal current, since V=L Δi/Δt for an inductor, current and voltage are…

A. In phase.B. Out of phase by 90⁰.C. Out of phase by 180⁰.D. Out of phase by 45⁰.

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With a sinusoidal current, since ΔV/Δt =i/C for an inductor, current and voltage are…

A. In phase.B. Out of phase by 90⁰.C. Out of phase by 180⁰.D. Out of phase by 45⁰.

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What must the sign of the charged particle be to satisfy the resulting force due to the magnetic field?A. PositiveB. NegativeC. Its not possible!

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In what direction does the force due to the electric field on the charged particle point?

A. to the leftB. to the rightC. towards the top of the

screenD. towards the bottom of the

screenE. into the screenF. out of the screenG. none of the above

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In what direction does the force due to the magnetic field on the charged particle point?

A. to the leftB. to the rightC. towards the top of the

screenD. towards the bottom of the

screenE. into the screenF. out of the screenG. none of the above

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