(I) The voltage drop is 17V (ii)Total current is 0.017 A
Explanation:
The summary of Ohm's Law is that current is equal to voltage divided by resistance.
Mathematically, I=V/R where I is current, V is voltage and R is resistance.
From the set up, 25V are entering the resistor R and emerge as 8 V. This means there is a voltage drop of;
25V-8V=17V
The voltage drop is 17 V
(ii) In calculating the total current, you notice that this a a series circuit where the current flowing is the same.
The formula for voltage drop V=IR ,hence
taking the voltage drop as 17 V and resistance R as 1kΩ = 1000Ω
17V = I*1000
17/1000 =I
0.017=I
0.017 A = I
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