Question

a ball is thrown with velocity 40m/s vertically upward what is the height covered by it in last 3 sec of ascent​

Answer 1

Answer:

Amount of the current flow through the 12 Ω resistors

Explanation:

According to Ohm’s law

V= IR

Therefore, I= V/R

Where,

R is the equivalent resistance of resistances 0.2 Ohm, 0.3 Ohm, 0.4Ohm, 0.5 Ohm and 12 Ohm.

These are connected in series.

Hence, the sum of the resistances will give the value of R.

R= R1 + R2 + R3 + R4 + R5

= 0.2 + 0.3 + 0.4 + 0.5 + 12 = 13.4 Ohm

The potential difference, V= 9 V

I = 9/13.4 = 0.671 A

When resistors are connected in series, the current is the same in all the resistors. Hence, current in 12 Ω resistor = 0.67 A.