Problem 21.40

A pair of 10uF capacitors in a high-power laser are charged to 1.7kV.

Paige Nieuwenhuis

Part A -

What charge is stored in each capacitor?

Express your answer using two significant figures.

Part B -

How much energy is stored in each capacitor?

Express your answer using two significant figures.



Try Again; 4 attempts remaining

Part B -

If the plates are separated by a Teflon sheet, how thick is the sheet?

Express your answer using two significant figures.

  1. 👍 0
  2. 👎 0
  3. 👁 770
  1. A. Use the equation Q = C*V

    You don't say if the capacitors are in parallel or series. If in parallel, V = 1700 V for each.

    B. E = (1/2) C V^2

    Your second "part B" must belong to a different question. More facts are needed about capacitor size, capacitance, and whether the Teflon fills the gap.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    A 10uf capacitor is charged from a 30v supply and then connected across an uncharged 50uf capacitor.Calculate a. The final potential difference across the combination b. The final and initial energies

    asked by Gift on October 18, 2016
  2. physics

    Two capacitors of capacities c1=3uf and c2=6uf arranged in series are connected in a parallel with third capacitor c3=4uf. The arrangement is connected to a 6.0 V battery. Calculate the total energy stored in the capacitors.

    asked by shahbaz ahmad pala on October 5, 2015
  3. Chemistry

    Light from three different lasers (A, B, and C), each with a different wavelength, was shined onto the same metal surface. Laser A produced no photoelectrons. Lasers C and B both produced photoelectrons, but the photoelectrons

    asked by Jessica on March 6, 2015
  4. physics

    A C1= 2.50uF capacitor is charged to 862 V and a C2= 6.80uF capacitor is charged to 660 V . These capacitors are then disconnected from their batteries. Next the positive plates are connected to each other and the negative plates

    asked by Steve on March 8, 2013
  5. Help please with reflection problem!?

    A laser is shot from vertex A of square ABCD of side length 1, towards point P on BC so that BP = 3/4. The laser reflects off the sides of the square, until it hits another vertex, at which point it stops. What is the length of

    asked by Knights on February 22, 2013
  1. Physics

    A 2.0-microF capacitor is charged to 50V and then connected in parallel (positive to positive plate) with a 4.0-microF capacitor charged to 100V. (a) What are the final charges on the capacitors? (b) What is the difference across

    asked by gOOD eVE on April 24, 2016
  2. Chemistry

    A laser produces 15.0mW of light. In 3.00hr , the laser emits 4.53×1020 photons. What is the wavelength of the laser?

    asked by Anonymous on September 15, 2014
  3. Physics

    A carbon dioxide laser is an infrared laser. A CO2 laser with a cavity length of 48.4 cm oscillates in the m=100,000.0 mode. 1. What is the wavelength of the laser beam? 2. What is the frequency of the laser beam?

    asked by Mike on November 25, 2010
  4. chemistry

    The watt is the derived SI unit of power, the measure of energy per unit time: 1 W = 1 J/s. A semiconductor laser in a CD player has an output wavelength of 780 nm and a power level of 0.10 mW. How many photons strike the CD

    asked by sarah on September 23, 2012
  5. physics

    A typical smaall laser has a power of 0.5mW= 5*10^-4J/s. How many photons are emitted each second by the laser?

    asked by Morgan on May 17, 2011

You can view more similar questions or ask a new question.