Three resistors have resistances of 100 Ohms, 330 Ohms, and 1000 Ohms. If these resistors are connected in parallel, what is their equivalent resistance?
a. 71 Ohms
b. 93 Ohms
c. 348 Ohms
d. 1430 Ohms
e. None of the above.
For a real resistor that has some internal resistance, which of the following is true about the voltage measured across the battery?
a. The voltage measured across a real battery is always equal to the open-circuit voltage.
b. The voltage measured across a real battery is always greater than the open-circuit voltage.
c. The voltage measured across a real battery is always less than the open-circuit voltage.
d. The voltage measured across a real battery can sometimes be greater than or less than the open-circuit voltage.
If the voltage V and the resistance R are measured, how would you calculate the current I?
a. I = V * R
b. I = V / R
c. I = R / V
d. None of the above.
actually I think i got the first answer, it is 71 ohms but dont know the other two :/
a. 71 Ohms
b. 93 Ohms
c. 348 Ohms
d. 1430 Ohms
e. None of the above.
For a real resistor that has some internal resistance, which of the following is true about the voltage measured across the battery?
a. The voltage measured across a real battery is always equal to the open-circuit voltage.
b. The voltage measured across a real battery is always greater than the open-circuit voltage.
c. The voltage measured across a real battery is always less than the open-circuit voltage.
d. The voltage measured across a real battery can sometimes be greater than or less than the open-circuit voltage.
If the voltage V and the resistance R are measured, how would you calculate the current I?
a. I = V * R
b. I = V / R
c. I = R / V
d. None of the above.
actually I think i got the first answer, it is 71 ohms but dont know the other two :/