Physics, 09.11.2019 15:31 biglue19

Contrast the movement of charges in a series circuit and in a parallel circuit.

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In a series circuit, there is only one possible path from one battery
terminal, through the circuit, to the other battery terminal. All of the
current that leaves one side of the battery travels exactly the same
path to the other side of the battery. There's never any point in the
circuit where the current has a choice of which way to go.

In a parallel circuit, there are different possible paths. On its way
through the circuit, the current comes to a point where it has a
choice of going this way or that way. What happens at that point
is that the current splits up ... part of it goes this way, and the rest
of it goes that way, and it all joins up together again somewhere
else in the circuit.

Answer from: Quest

the assestment will probley apele with cause and effect

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

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Contrast the movement of charges in a series circuit and in a parallel circuit....