Resistor problems

  • Thread starter mustang
  • Start date
  • #1
169
0
Problem 17.
A(n) 5.2 ohm resistor, a(n) 9.2 ohm resistor, and a(n) 14 ohm resistor are connected in series with 6.0V battery.
Determine the equivalent resistance for the circuit. Answer in units of ohms.
Note: I don't know where to start.

Problem 26.
A resistor with an unknown resistance is connected in parallel to a(n) 14 ohm resistor. When both resistors are connected in parallel to an emf source of 19 V, the current across the unknown resistor is measured with an ammeter to be 3.2 A.
What is the resistance of the unknown resistor? In units of ohm.
Note: What formula(s) should I use?

Problem 27.
Two resistors, A and B, are connected in series to a 12 V battery. A voltmeter connected across resistor A measures a potential difference of 6.7 V. When the two resistors are connected in parallel across the 12 V battery, the current in B is found to be 1.6 A. Find the resistance of B. Answer in ohms.
Note: What formula(s) should I use?
 

Answers and Replies

  • #2
chroot
Staff Emeritus
Science Advisor
Gold Member
10,226
36
Same as your other thread. Start with the fact that when you wire resistors in series, their resistances add together.

- Warren
 

Related Threads on Resistor problems

  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
1
Views
857
Replies
7
Views
7K
  • Last Post
Replies
5
Views
496
  • Last Post
Replies
3
Views
898
  • Last Post
Replies
4
Views
634
  • Last Post
Replies
10
Views
4K
  • Last Post
Replies
11
Views
1K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
1
Views
1K
Top