Question

1]Choose the most accurate
Two connected in parallel equal Resistances when
A)Equivalent resistance of combination increases
B) Equivalent resistance of combination decreases
C) Equivalent resistance will be half of each of original resistances
D) equivalent resistance will be double of individual resistances

2]If power remains same then current will
A) Increase with decrease in potential difference
B) Decrease with decrease in potential difference
C) Increase or decrease or remain same
D) Both a and c

3]If two wires (with specific resistances p 1 and p 2 ) having equal thickness but one has length double of the other are connected in series the resistivity of the new combination will
A) remain same
B)( rho 1 + rho 2 )/2
C)( rho 1 +2 rho 2 )/3
D) p 1 +2p 2

*Please give with an explanation

Answer 1

Answer:

i think 1) B, 2) A, 3 C

Explanation:

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