science

posted by .

In the circuit above, the resistors all have the same resistance. The battery, wires, and ammeter have negligible resistance. A closed switch also has negligible resistance.
Closing which of the switches will produce the greatest power dissipation in R2?


S1 only

S2 only

S1 and S2 only

S1 and S3 only

S1, S2, and S3

  • science -

    without a diagram,...

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    The battery in the circuit diagram has an EMF of 12V and an unknown internal resistance r. Voltmeter V1 is connected across the battery and voltmeter V2 is connected across the switch S. The resistance of the connecting wires and the …
  2. Physics

    The battery in the circuit diagram has an EMF of 12V and an unknown internal resistance r. Voltmeter V1 is connected across the battery and voltmeter V2 is connected across the switch S. The resistance of the connecting wires and the …
  3. physics

    Three small lamps are connected to a 24 V battery, as shown in the figure. Assume the battery is ideal (has no internal resistance and given in the figure) and the connecting wires have no resistance. Unlike most real bulbs, …
  4. physical science

    the headlamp and 2 identical tail lamp are conected in paralel to batery with unknown internal resistancs.headlamp resistance wth 2.4 ohm controld by switch s1.the tail lamps are controled by s2.the resistance of the connection wired …
  5. physics

    Three resistors are connected to a 20 V battery as shown. The internal resistance of the battery is negligible. (a) What is the current through the 15 resistance?
  6. Physics - Electricity

    Three resistors (15, 20, 25 ohms in this order) are connected to a 13-V battery . The internal resistance of the battery is negligible. What is the voltage difference across the 20-Ω resistance?
  7. Please help asap science

    1. An electrical circuit consists of a battery with 2 cells,each with an EMF of 12 volts and an internal resistance of of 0.4 ohms,connected in parallel. An ammeter with an internal resistance of 0.15 ohms is connected in series with …
  8. Physics

    A 12-V automobile storage battery has an internal resistance of 0.004 ohms. A) Find the current and power dissipation when the terminals are connected by a conductor of negligible Resistance B) The battery delivers 80A to the starter …
  9. Science

    Electric circuit with three cells each of emf 2v and negligible internal resistances are connected in series with an ammeter two resistors of resistance 2 and 6 and a key. 1. Draw a diagram for the above information 2.calculate the …
  10. Physics

    Three resistors are connected in series across a battery. The value of each resistance and its maximum power rating are as follows: 7.1Ω and 20.9 W, 29.5Ω and 11.4 W, and 13.6Ω and 12.5 W. (a) What is the greatest voltage that the …

More Similar Questions