Much power does a 10 Ohm bulb have in a series circuit with a battery of 12V and nothing else in the the circuit? a- 35.8W
b- 82.3W
c- 120W
d- 14.4W

Hel please I’m in the exam

it will be d) 14.4W

Explanation:

potential difference (v) = 12 volts

resistance (r) = 10 ohms

now, we know

=》

=》

=》

=》

the answer is b

explanation:

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft