Answer:
a. 17 μC b. 14.45 J
Explanation:
Here is the complete question
A pair of 10μF capacitors in a high-power laser are charged to 1.7 kV.
a. What charge is stored in each capacitor?
b. How much energy is stored in each capacitor?
a. The charge Q stored in a capacitor is Q = CV where C = capacitance and V = voltage. Here, C = 10μF = 10 × 10⁻⁶ F and V = 1.7 kV = 1.7 × 10³ V.
So, Q = CV = 10 × 10⁻⁶ × 1.7 × 10³ = 1.7 × 10⁻² C = 17 × 10⁻³ C = 17 μC
b. The energy stored in a capacitor is given by W = 1/2CV² = 1/2 × 10 × 10⁻⁶ F × (1.7 × 10³ V)² = 1/2 × 10 × 10⁻⁶ F × 2.89 × 10⁶ V² = 1/2 × 10 × 2.89 × 10⁶ × 10⁻⁶ J = 14.45 J
Explanation:
<h2>[16]</h2>
Here,
We have to find the equivalent resistance of the circuit.
Here, 
and 
are connected in series, so their combined resistance will be given by,
Now, the combined resistance of and is connected in parallel combination with 
, so their combined resistance will be given by,
Reciprocating both sides,
Now, the combined resistance of , and is connected in series combination with 
. So, equivalent resistance will be given by,
Henceforth, Option A is correct.
<h2>_________________________________</h2>
<h2>[17]</h2>
Here, we have to find the amount of flow of current in the circuit. By using ohm's law,
V = IR
3 = I × 3.33
3 ÷ 3.33 = I
0.90 Ampere = I
Henceforth, Option B is correct.
<h2>____________________________</h2>
The correct answer is C. Splitting Nuclei.
Splitting nuclei is not a characteristics of chemical energy.
Chemical energy is termed as the energy which results when there is chemical reaction. Chemical energy is being stored in molecules which makes substance and bonds of atoms.
In order for our bodies to function well they need chemical energy. During photosynthesis plants perform chemical reaction each and every day.
