Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

OL PH 223 30: 4-5

No description
by

Richard Datwyler

on 29 February 2016

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of OL PH 223 30: 4-5

A 3.0 mm diameter wire carries a 12 A current when the electric field is 0.085 V/m. What is the wire's resistivity?
A 0.50 mm diameter silver wire carries a 20 mA Current. What are the
Electric field
Wire 1 and 2 are made of the same metal. Wire 2 has twice the length and twice the diameter of wire 1. What are the ratios of the resistivity and their resistances ?
Pencil 'lead' is actually carbon. What is the current if a 9.0 V potential difference is applied between the ends of the 0.7 mm diameter, 6.0 cm long lead from a mechanical pencil?
To protect your house you place a 5.0 m tall iron lighting rod. You find that lightning carries 50 kA and lasts up to 50 micro seconds
How much charge is that?
What is the effective resistance?
Individually....
If a 9 V battery was inserted between a and b, how much power would all the resistors dissipate?
This one?
=
and Electron drift speed in the wire?
=
1:1
If you don't want the potential difference between top and bottom to exceed 100 V what must the diameter be?
2000
10
4
8
12
4
12
4
8
4
Full transcript