I realize this problem is experimental and does not give exact numbers to start
ID: 1343127 • Letter: I
Question
I realize this problem is experimental and does not give exact numbers to start with, but could you make up some so I could see the process of solving this type of problem (the relationship between the numbers) ?Thanks a lot. EXPT) 4. gs) Series and Parallel Resistances/Kirchhoff (hooed on S Verrall) ) Wine ap the ahove cei whr R, denote the resistances of 3 light bulbs Precise measure the voltage across A and C. Record this voltage here bi Measure the cument through A c) Measure the currest through D d) Measure the curnent through E e) Measure the voltage across E and C D Measure the voltage across B and D h) Cakculate R 0 Measure the voltage across D and C DCaculate R, k) What is the total resistance of the circuit Possibly useful 1. ( k,%) formulas: +-
Explanation / Answer
a)
Voltage across AC = voltahe of battery, V
Let V=10 V
then, voltage across AC = 10 V
b)
Currenr through A is total current.
It will be sum of current through D and E
Let it be 10 A
c)
Let current through D be 3 A
d)
Then current through A = 10-3 = 7A
e)
voltage across EC will be same as coltage across AC
=10 V
f)
R3= V/I = 10/7 =1.43 ohm
g)
It will be less than 10 V
let it be 7 V
h)
R1= voltage across AD/ current in D
= 7/3 =2.33 ohm
i)
VOltage acrodd D and C = V - voltage across AD
= 10-7 = 3A
j)
R2 = VOltage acrodd D and C / current in D
=3/3
= 1A
h)
formula is given