physics

posted by .

A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V.
What is the equivalent resistance of the
circuit?

What is the current in the circuit?
Answer in units of A.


What is the voltage drop across the first
lamp?
Answer in units of V.



What is the power dissipated in the first
lamp?
Answer in units of W.

  • physics -

    I will be happy to critique your thinking on this.

  • physics -

    I was only able to get the first and second question. Not the last two.

  • physics -

    Req. = R1+R2 = 37 + 59 = 96 Ohms.

    I = E/Req. = 43/96 = 0.448A

    V1 = I*R1 = 0.448 * 37 = 16.6 Volts.

    P1 = V1*I = 16.6 * 0.448 = 7.44 W.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A 16.0 ohm and a 24.0 ohm resistor are connected in parallel. A difference in potential of 32.0 V is applied to the combination. What is the equivalent resistance of the parallel circuit?
  2. physics

    A 16.0 ohm and a 24.0 ohm resistor are connected in parallel. A difference in potential of 32.0 V is applied to the combination. What is the equivalent resistance of the parallel circuit?
  3. Physics

    A 22-ohm resistor and a 33-ohm resistor are connected in series and placed across 120-V potential difference. 1. what is the equivalent resistance of the circuit?
  4. Physics

    A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V. What is the equivalent resistance of the circuit?
  5. physics.

    resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the …
  6. physics

    resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the …
  7. physics

    resistors of 30 ohms and 60 ohms are connected in parallel and joined in series to a 10 ohm resistor. the circuit voltage is 180 volts I need to find 1)the voltage of the parallel circuit 2)the resistance of the complete circuit 3)the …
  8. physics

    A 13 ohm, 35 ohm, and 2k ohmresistor are connected in a series circuit with a 190 V battery. What is the equivalent resistance of the circuit?
  9. physics

    A 13 ohm, 35 ohm, and 2k ohmresistor are connected in a series circuit with a 190 V battery. What is the equivalent resistance of the circuit?
  10. Physics science

    A 10 ohm, 20 ohm lamp and 12v battery are connected in a parallel. A current of 1.8 A passes through the battery and a current of 1.2 A passes through the motor. 1) Determine the current through the lamp. 2) Calculate the potential …

More Similar Questions