Answer: 3
Step-by-step explanation:
12C - 4 = 14C - 10
12C - 14C = - 10 + 4
- 2C = - 6
C = <u>- 6</u>
-2
C = 3
I just answered a so let's start with b :
______________________________
b. The equivalent resistance of series
resistances is equal to their sum
Thus :
equivalent resistance = 480 + 360
equivalent resistance = 840
_______________________________
c.
I = V ÷ R
I = 120 ÷ 840
I = 0.1428 A
_______________________________
d. 0.1428 A
_______________________________
e. 480 ===》 120 - ( 480 × 0.1428 ) =
120 - 68.544 =
51.456
360 ===》 120 - ( 360 × 0.1428 ) =
120 - 51.408 =
68.592
_______________________________
f. 480 ===》68.544 lower than battery
360 ===》 51.408 lower than battery
1)a) 1:4
b) 2:1
c) 1:4
d) 1:70
e) 7:18
f) 100:3
I think they're all right :)
