A 1.5V battery is connected to a small light bulb with a resistance of 3.5Ω. What is the current in the bulb?
A 1.5V battery is connected to a small light bulb with a resistance of 3.5Ω. What is the current flowing through the bulb?
5 Answers
Ohm's Law: v = ir
where
v = voltage, Volts
i = current, Amps
r = resistance, Ohms
i = v/r
i = 1.5/3.5 = 0.43 Amps
From Ohm's regulation, V is without postpone proportional to I if different actual parts alongside with temperature are stored consistent. So, V=IR the place V is the p.d. around the bulb, I is the present which flows throughout the bulb and R is the resistance of the bulb. subsequently, I=V/R =4.7/7.9 I=595 mA.
If the bulb is ohmic (follows ohms law as maximum bulbs in the market do),
V=IR
I=V/R
=1.5/3.5
=3/7 ampere
Use ohms law. Voltage = Current*Resistance or V=IR
solving for I ====> V/R=I
I = 428mA or .428A
hope this helps
Related Questions
"If this same quantity of energy were transferred to 2.5 kg of water at its boiling point, what fraction of the water wo...
Have you ever noticed how the rear wheel of a bike seems to follow the front wheel closely? Why does this happen, and is...
Please identify each of the following as measurements: Length Area Volume Mass Density Time Temperature...
Today's CPUs operate at speeds measured in gigahertz rather than kilohertz. Is this statement true or false?
I have a question regarding torque in a magnetism context. I understand that the equation τ = IABsin(θ) will be relevant...
A 4.5 kg box slides down a 4.4 m high frictionless hill, starting from rest. It then travels across a 2.4 m wide horizon...
How does friction play a role in sledding and skiing? Specifically, what are the effects of friction on speed, control,...
What is the speed of light in kilometers per hour?
I need help finding the current through each resistor in the following circuit: http://session.masteringphysics.com/prob...
What are the steps to create an energy level diagram for aluminum? Could you provide detailed guidance on how to accurat...