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Integrated Concepts If electric and magnetic field strengths vary sinusoidally in time, being zero at $t=0,$ then $E=E_{0} \sin 2 \pi f t$ and $B=B_{0} \sin 2 \pi f t .$ Let $f=1.00$ GHz here. (a) When are the field strengths first zero? (b) When do they reach their most negative value? (c) How much time is needed for them to complete one cycle?

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Physics 102 Electricity and Magnetism

Chapter 24

Electromagnetic Waves

University of Michigan - Ann Arbor

University of Washington

Hope College

Lectures

11:53

In physics, a charge is a …

10:30

The electric force is a ph…

02:17

If electric and magnetic f…

02:59

For the situation shown in…

03:00

A constant electric field …

08:21

At one instant, the elect…

11:45

Within the green dashed ci…

07:41

A magnetic field directed …

08:25

An electron is accelerated…

03:26

Uniform electric field. In…

04:32

Crussed $\vec{E}$ and $\ve…

09:18

(II) A cyclotron with a ra…

12:30

04:09

04:47

A particle with electric c…

11:32

A proton of charge $+e$ an…

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An $\alpha$ -particle has …

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(II) A proton moves throug…

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A proton moves through a u…

but air problem number 46 we are asked to find electric field Romantic feel for tease equal to zero forties ical do zero putting the value physical zero we get easy Cool, Thio zero and be easy. Cool, Thio Sam zero. Mmm. But me we are asked to find for what will you off? Um, when do they reach the most negative values with electric field Romantic feel when they do reach most active Ellie's. So the most negative values they reach when the we see both are dependent on a sign to buy to buy if t so both are the science function value. So science function becomes Ah, negative one When we have a two by is equal to this dis factor to buy is a call to Dubai ft. A sickle to our three pie were too. Bye. So it will reach your most negative value. And to buy ft is a cook three by two in. But see, um, we had us to find the time. Peter dime for can be written. It's a T. Burton is one where f where f is given. Here is Ah, um one Giga Hertz. So this is one gigahertz, which is, um, one 10 to the power nine hertz and bringing up this factor. We get the one times gentle power minus line minus nine seconds. This will be over time. Beauty. End off the problem. Thank you for watching.

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