guys...me...daring with physics problems...plz answer step by step......the correct answer will be marked as brainliest
Answers
Answer:
Resistance of electric lamp is 5 ohm
Explanation:
Ohm's law: V = IR.
Given that resistance of conductor is 5 ohm and they r connected in series so thus, total resistance is (5+x) ohms, if x is resistance of lamp.
R = V/I = 10 / 1
x+5=10
Thus, x = 10 - 5 = 5 ohms.
If another resistance of 10 ohm connected in parallel total resistance, 2 10 ohm resistance in parallel so:
R = (10*10)/10+10 = 100/20 = 5. So total resistance 5 ohm. Voltage is not changing. Thus new current I = V/R = 10/5 = 2 amperes.
Total current 2 amperes. Change in current across 5 ohm conductor is
I = V/R = 10/5 = 2 amperes only. Previously, current was 1 ampere. So change is 2-1 = 1 ampere as parallel connection current increases.
Potential difference remains same across parallel connections.
Answer:
u can solve it by ohm's law......
v =ir