What is the maximum voltage that can be applied to a 7.2 k ohm resistor rated at 1.2 watts?

Question

anonymous · Answer

if u cant get that one what about this The beam of electrons goes undeflected when passing through crossed electric and magnetic fields of magnitude 1.37x104 V/m and 2.89x10-3 T, respectively. What is the radius of the electron orbit, in mm, if the electric field is turned off?

johnweldon1993 · Answer

Well We know that

$$V = \sqrt{PR}$$
P here would be the 1.2 Watts
and R would be the 7200 ohm (notice the conversion from 7.2k ohm)

So

$$V = \sqrt{(1.2)(7200)}$$

V = ?

anonymous · Answer

92.95

johnweldon1993 · Answer

correct...still need help on that second one?

anonymous · Answer

yeah

anonymous · Answer

nvm

anonymous · Answer

i wrote the answer for the first question for the second question