- #1

- 2

- 1

[Moved to homework, so no template]

working on this issue, and i think i have to find ttl resistance, to find current using ohms law. looking at the circuit attached there is two loops. Regardless my understanding is the voltage in each circuit should equal 45v. I have gotten current from 1.5, 1.8, 2.2 Amps but when applying ohms law for each voltage drop at each resistor the total voltage exceeds 45v and it should not. I am missing something here...what is the voltage drop across 24Ω . now it cannot be as simple as I=45/24...I tried the Rtotal r1=21 and clock wise. So R4 30Ω i got 1.5 A, but to find Rt it is 21+24+15=60Ω

then i tried the I=(1/r+1/Rs)^-1.... so i got (1/30 + 1/60)^-1= 0.046 then invert 21.7 is my ttl Resistance. This is kinda where i go sideways...Ohms law v=IR so this converts to I=v/r which is I=45/21.7= 2.07A... but that does not seem right as voltage drop at 24Ω is v=2.07(24)=50v which is wrong, it can not exceed 45V, what am i doing wrong. Please advise...frustrated....grrrrrr

**Summary::**trying to figure out physics for current and having issues. keep getting something that does not make sense.working on this issue, and i think i have to find ttl resistance, to find current using ohms law. looking at the circuit attached there is two loops. Regardless my understanding is the voltage in each circuit should equal 45v. I have gotten current from 1.5, 1.8, 2.2 Amps but when applying ohms law for each voltage drop at each resistor the total voltage exceeds 45v and it should not. I am missing something here...what is the voltage drop across 24Ω . now it cannot be as simple as I=45/24...I tried the Rtotal r1=21 and clock wise. So R4 30Ω i got 1.5 A, but to find Rt it is 21+24+15=60Ω

then i tried the I=(1/r+1/Rs)^-1.... so i got (1/30 + 1/60)^-1= 0.046 then invert 21.7 is my ttl Resistance. This is kinda where i go sideways...Ohms law v=IR so this converts to I=v/r which is I=45/21.7= 2.07A... but that does not seem right as voltage drop at 24Ω is v=2.07(24)=50v which is wrong, it can not exceed 45V, what am i doing wrong. Please advise...frustrated....grrrrrr

Last edited by a moderator: