Serious STEMcels help me out with this question

[FidelCashflow]

I'm completely retarded tonight and cant figure out how to answer this question

 

[blond_elf_bard]

I will be taking Physics II next semester so I can get back to you then

 

[FrothySolutions]

Not every STEM major is an electrician though.

 

[FidelCashflow]

I will be taking Physics II next semester so I can get back to you then

Lol this is first year electrical circuits

 

[blond_elf_bard]

Lol this is first year electrical circuits

oh

 

[racepilledjbw]

P = IV maybe

 

[Deleted member 18193]

You have to know the equation: E = VIT
E: Energy in Joules: 0.6 J
V: Potential Difference in Volts: 15 V
I : current in Amps: Unknown
t: time in seconds: 8 * 10^-6

Solve for I (Amps)
0.6 = 15 x I x 8 *10^-6

Current(i) is equal to 5000 Amperes or 5 kA

 

[BlackShot]

Power is the ratio between the variation in energy and the time it took to vary, so

​

P = 0.6 J / 8 us ,​

P = 6.(10^-1) / (8).(10^-6). J / s ,​

P = 6/8.(10^5) W, since W = J / s.​

And the power associated to movement of electric charges can be decomposed like so:

​

P = dw / dt.​

P = ( dw / dq ).( dq / dt ) , where:​

v(t) = dw / dq , and​

i (t) = dq / dt . Therefore:​

P = v(t) . i(t) , which gives:​

i(t) = P/v(t) .​

So knowing v(t) and P, we have:

​

i(t) = 6/8.(10^5) W / 15 V ,​

i(t) = 0.05.(10^5) W / V ,​

i(t) = 5000 A., since W = V.A .​

 

[FidelCashflow]

You have to know the equation: E = VIT
E: Energy in Joules: 0.6 J
V: Potential Difference in Volts: 15 V
I : current in Amps: Unknown
t: time in seconds: 8 * 10^-6

Solve for I (Amps)
0.6 = 15 x I x 8 *10^-6

Current(i) is equal to 5000 Amperes or 5 kA

Power is the ratio between the variation in energy and the time it took to vary, so

​

P = 0.6 J / 8 us ,​

P = 6.(10^-1) / (8).(10^-6). J / s ,​

P = 6/8.(10^5) W, since W = J / s.​

And the power associated to movement of electric charges can be decomposed like so:

​

P = dw / dt.​

P = ( dw / dq ).( dq / dt ) , where:​

v(t) = dw / dq , and​

i (t) = dq / dt . Therefore:​

P = v(t) . i(t) , which gives:​

i(t) = P/v(t) .​

So knowing v(t) and P, we have:

​

i(t) = 6/8.(10^5) W / 15 V ,​

i(t) = 0.05.(10^5) W / V ,​

i(t) = 5000 A., since W = V.A .​

Thanks for saving me frens. I would give you reddit gold if I could