physics

posted by .

The current in a 51 resistor is 0.14 A. This resistor is in series with a 28 resistor, and the series combination is connected across a battery. What is the battery voltage?

• physics -

R1 = 51 Ohms.
R2 = 28 Ohms.

Vb = V1 + V2 = I*R1 + I*R2,
Vb = 0.14*51 + 0.14*28,
Vb = 7.14 + 3.92 = 11.06 Volts.

Similar Questions

1. Physics

1)Several resistors are connected in series. If a battery provides constant voltage in this circuit the addition of another resistor in series a)increases current through each resistor b)decreases current through each resistor c)doesn't …
2. Physics

Could some one tell m if this is right? 1)Does currend flow through a resistor or across a resistor in a series circuit?
3. Physics.

A 15.0- resistor and a 20.0- resistor are connected in parallel. A 5.00- resistor is connected in series with this parallel arrangement. The resistors are connected across a 1.00 10^2-V battery. What is the current flowing through …
4. College Physics

You have 20 and 80 (unit is the upside down U) resistors in a circuit with a 100 V battery. A)These resistors are parallel. Find the current through each resistor and the voltage drop across each resistor. B) These resistors are connected …
5. physics

A 65.0-Ù resistor is connected in parallel with a 117.0-Ù resistor. This parallel group is connected in series with a 22.0-Ù resistor. The total combination is connected across a 15.0-V battery Find the current in the 117.0-Ù resistor. …
6. Physics 2

A(n) 78-Ù resistor and a 68-Ù resistor are connected in series across a battery. The voltage across the 78-Ù resistor is 25 V. What is the voltage across the 68-Ù resistor?