Answer:
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Explanation:
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Answer:
The magnitude of the new magnetic force on each wire will be 4 times of the initial force.
Explanation:
When two long parallel wires carry unequal currents, the magnetic force acting on two wires per unit of length is given by :
r is distance from wires
If the current in both wires is now doubled, new force per unit length is given by :
So, the magnitude of the new magnetic force on each wire will be 4 times of the initial force.
9.5+3.5+15 m in 43 secs
28m in 43 secs
28/43 m/s
total distance/total time=av speed
Answer: B.
but the resistance is lower in the parallel circuit.
Explanation:
A circuit with parallel connections has a lower total resistance than the resistors connected in series. This is consistent with conservation of charge. The power dissipated by each resistor is considerably higher in parallel than when connected in series to the same voltage source.
The answer is having fewer neutrons than protons or electrons.