Conceptual Question: Compare the 40W light bulb to a 100W light bulb (which diss

Question

Conceptual Question: Compare the 40W light bulb to a 100W light bulb (which dissipates 100W of power when it is turned on). Which has a larger resistance when turned on? Please provide your detailed explanation.

coulomb's law (magnitude of electric force) magnitude of electric field from point charge force on point charge kinematics equations v(t)-voat electric potential due to a point charge electric potential difference between points in uniform field remeber tna electric potential energy of a point charge capacitor equation effective capacitance (series) effective capacitance (parallel) capacitor potential energy parallel plate capacitor capacitance current current in beam or through wire cylinder resistance temperature dependence of resistivity Ohm's Law V--EAs (remeber that As is displacement in the direction of the fiela) Q = CV dt effective resistance (series) effective resistance (parallel) resistor dissipated poweir emf generated power discharging capacitor

Explanation / Answer

Voltage of source will be constant to which bulb are connected.

V =constant

and P = V^2 / R

P R = constant

40 R1 = 100 R2

R1 = 2.5 R2

resistance of 40 W bulb is 2.5 times greater than 100 W bulb.

ANs. 40 W bulb

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