### What must be the charge on new drum

Assignment Help Biology
##### Reference no: EM132049865

The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.50×105 N/C. What is the surface charge density of the drum, assuming that the drum is a conductor?

2.21×10-6 C/m^2

(a) The drum of the photocopying machine in the problem above has a length of 38 cm and a diameter of 13 cm. What is the total charge on the drum?

The manufacturer wishes to produce a desktop version of the machine. This requires reducing the size of the drum to a length of 32 cm and a diameter of 6 cm. The electric field at the drum surface must remain unchanged. What must be the charge on this new drum?

#### Questions Cloud

 Reflect on modern crime elements and related activities : There are currently discussions of building a new National Program of Crime Statistics (NCS-X) which will reflect modern crime elements and related activities. What are the dividend yield and percentage capital gain : What is the total rate of return on the stock? What are the dividend yield and percentage capital gain? What is the force exerted by a second piston : A force of 8800 N is exerted on a piston that has an area of 0.010 m2. What is the force exerted by a second piston that has an area of 0.040 m2? The various criminal justice record keeping programs : Please assess the strengths and weaknesses of the various criminal justice record keeping programs . What must be the charge on new drum : The electric field at the drum surface must remain unchanged. What must be the charge on this new drum? What factor must your blood pressure increase to compensate : By what factor must your blood pressure increase to compensate for a 5 % narrowing in your blood vessels? Explain the various theories of motivation : What is motivation? What factors must be considered in maximizing productivity? What are the various theories of motivation? Amplitude of the oscillations : What will be the frequency of the oscillations after the bullet is stuck in the block? 2. What will be the amplitude of the oscillations Find the bar velocity as a function of time : At some point the bar was released with zero initial velocity.Find its velocity after long time. Find the bar's velocity as a function of time (for all times).

### Write a Review

#### Key regulatory step in glycolysis

Which of these is not a key regulatory step in glycolysis?

#### Scientist has been working to find the protein responsible

scientist has been working to find the protein responsible for alcohol metabolism. the scientist has been unable to

#### How many milligrams of vit-c

How many milligrams of Vit-C are there per 100-gram serving of raw fruit?

#### Lysogenic strain of e. coli

Suppose that you start with a lysogenic strain of E. coli. In this strain, a mutation arises that results in the intracellular repressor level becoming twice as high as it normally would be.

#### Compare and contrast plasma lh levels

Mom (Sue) is 50 years of age and entered into menopause five years ago. She takes two raw bovine ovarian capsules a day.

#### The most significant probable cause of this temporary apnea

The most significant probable cause of this temporary apnea is decreased activity of the what.  what is the probability that the next child would be a girl.

#### List the steps in preparing a nutritional education session

List the steps in preparing a nutritional education session.In a long term care facility, what are residents rights related to menu choices?

#### Explain how the structure of the digestive tract

Explain how the structure of the digestive tract in different invertebrate groups affects the size of the organisms they can eat.

#### What was the risk of hearing loss attributable

What was the risk of hearing loss attributable to not wearing earplugs - what was the relative risk in nonwearers as compared to wearers?

#### Comprehensive understanding of meteorology

Explain how a comprehensive understanding of meteorology has moral implications for pilots and how this relates to biblical principles. Of all of the gasses that compose the troposphere, which one is the most influential for weather? Why?

#### What roles does fat serve in the human body

Let's address the issue of why fat is beneficial for human functioning. What roles does fat serve in the human body?