Physics

posted by .

A battery charger is connected to a dead battery and delivers a current of 4.5 A for 6.0 hours, keeping the voltage across the battery terminals at 12 V in the process. How much energy is delivered to the battery?

  • Physics -

    Power(W) x Time (s) = Energy (Joules)

    The power in watts is (Volts)x(Amperes)

    Now do the numbers.

    If these equations are not familiar to you by now, you are not learning much physics.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. AP PHYSICS

    A 3.0-uF capacitor and a 4.0-uF capacitor are connected in series across a 40.0-V battery. A 10.0-uF capacitor is also connected directly across the battery terminals. Find the total charge that the battery delivers to the capacitors. …
  2. physics

    when you connect an unknown resistor across the terminals of a 1.50 V AAA battery having a negligible internal resistance, you measure a current of 18.0 mA flowing through it .A)what is the resistance of the resistor. B) if you now …
  3. physics

    A new "D" battery has an emf of 1.5 V. When a wire of negligible resistance is connected between the terminals of the battery, a current of 25 A is produced. Find the internal resistance of the battery. ________ Ω
  4. physics

    The voltage across the terminals of a 8.90 V battery is 8.00 V when the battery is connected to a 50.0 \Omega load.What is the battery's internal resistance?
  5. physics

    To recharge a 12 V battery, a battery charger must move 2.7 × 105 C of charge from the negative terminal to the positive terminal. How much work is done by the battery charger?
  6. physics

    Consider a battery that has Vt = 12.0 V when it is not connected to a circuit. When a 10.0- resistor is connected with the battery, the potential difference across the battery’s terminals drops to 10.9 V. What is the internal …
  7. Physics

    A battery has an internal resistance of 0.42. A number of identical light bulbs, each with a resistance of 31.500, are connected in parallel across the battery terminals. The terminal voltage of the battery is observed to be one-half …
  8. Physics

    A 79.4-Ω and a 47.7-Ω resistor are connected in parallel. When this combination is connected across a battery, the current delivered by the battery is 0.296 A. When the 47.7-Ω resistor is disconnected, the current from …
  9. Physics

    a)In the series circuits, what do you notice about the voltage across each resistor compared with the voltage of the battery?
  10. Science

    Consider a lead-acid battery with 500 Ah capacity and a rated voltage of 12 V. a)What is the total capacity of energy in watt-hours that can be stored in the battery?

More Similar Questions