Question

66. A small drop of water is suspended motionless in air by a uniform electric field...


66. A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 8480 N/C. The mass of the water drop is 3.50 × 10-9 kg. (a) is the excess charge on the water drop positive or negative? Why? (b) How many excess elec- trons or protons reside on the drop?
66. A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 8480 N/C. The mass of the water drop is 3.50 × 10-9 kg. (a) is the excess charge on the water drop positive or negative? Why? (b) How many excess elec- trons or protons reside on the drop?
0 0
Add a comment Improve this question
Answer #1

here drop can be balanced by upward electrostatic force which balances the weight of the drop.

and number of electrons or protons we can get by using quantization of charge.

q= ne as solved belowSolutton: balance the hop in a* Shoutd be n upwe or n +he d、rection at elec mc field the retare directイ の ton) ecdenton to

Add a comment
Know the answer?
Add Answer to:
66. A small drop of water is suspended motionless in air by a uniform electric field...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A small drop of water is suspended motionless in air by a uniform electric field that...

    A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 8200 N/C. The mass of the water drop is 3.81x 10^-9 kg. (a) Is the excess charge on the water drop positive or negative? Why? (b) How many excess electrons or protons reside on the drop?

  • A small drop of water is suspended motionless in air by a uniform electric field that...

    A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 8110 N/C. The mass of the water drop is 2.72 × 10-9 kg. How many excess electrons or protons reside on the drop?

  • A small drop of water is suspended motionless in air by a uniform electric field that...

    A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 12000 N/C. The mass of the water drop is 3.23 × 10-9 kg. How many excess electrons or protons reside on the drop?

  • A small drop of water is suspended motionless in air by a unilform electric field that...

    A small drop of water is suspended motionless in air by a unilform electric field that is directed upward and has a a magnitude of 8560 N/C. The mass of the water drop is 3.64 x 10ko. (a) Is the excess charge on the water drop positive or negative? O positive O negative This answer has not been graded yo (b) How many excess electrons or protons reside on the drop? Additional Materials Lu Section 18

  • A small object of mass 3.56 g and charge -17.6 uC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground

    A small object of mass 3.56 g and charge -17.6 μC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field? 

  • Excess charge on the droplet

    A small droplet of oil with mass of 7.56×10-16 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 6625 N/C.Is the excess charge on the droplet positive or negative?How many excess elementary charges reside on the droplet? (The elementary charge is e = 1.60×10-19 C.)

  • 9. A small object of mass 3.92 g and charge −19.6 μC is suspended motionless above...

    9. A small object of mass 3.92 g and charge −19.6 μC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field? magnitude __________ N/C direction ---Select--- East West downward upward 9. -12 points SerCP10 15.P.017 My Notes Ask Your Teacher A small object of mass 3.92 g and charge -19.6 IC is suspended motionless above the ground when immersed in a uniform...

  • A small object of mass 3.72 g and charge −18.9 μC is suspended motionless above the...

    A small object of mass 3.72 g and charge −18.9 μC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field? magnitude N/C direction ---Select--- East downward West upward

  • 1. A small droplet of oil with a mass of 2.00 x 10-15 kg is given...

    1. A small droplet of oil with a mass of 2.00 x 10-15 kg is given a small excess charge and is then held suspended in a region of uniform electric field directed upward with a magnitude of 6125 N/C. a) Is the excess charge positive or negative? b) How many elementary charges (unbalanced electrons or protons) are on the oil droplet? Note: this is the famous Millikan Oil Drop Experiment. Millikan took into account the air friction and buoyancy...

  • A small object of mass 4.18 g and charge -19 µC is suspended motionless above the...

    A small object of mass 4.18 g and charge -19 µC is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. What are the magnitude and direction of the electric field? magnitude

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT