How much energy in joules is contained in the battery

Assignment Help Electrical Engineering

Reference no: EM13285186

A 9-V flashlight battery has a rating of 1.8kWh. If the bulb draws a current of 100mA when lit; determine the following:

a)For how long with the flashlight provide illumination?

b)How much energy in joules is contained in the battery?

c)What is the battery's rating in ampere-hours?

Reference no: EM13285186

Questions Cloud

Determine the value of the shunt that should be used : Given a d'Arsonval meter movement with a full scale (FS) current of 50mA and a resistance of 2ohms, determine the value of the shunt that should be used to construct an ammeter (AM) with a sensitivity of 200mA FS.

What is her acceleration on the rough ice : A speed skater moving across frictionless ice at 8.80 hits a 4.20-m-wide patch of rough ice. What is her acceleration on the rough ice

At what price will your bond be sold : Currently, bonds of this particular risk class are yielding investors 9 percent. A cash shortage has forced you to instruct your treasurer to liquidate the bond.

Define the initial concentration of the reactant : The t1/2 of a second order reaction is 26.0 hours when the initial concentration of the reactant is 0.256M. How many minutes would it take for the concentration of the reactant to drop from 0.256M to 0.064M

How much energy in joules is contained in the battery : A 9-V flashlight battery has a rating of 1.8kWh. If the bulb draws a current of 100mA when lit; determine the following: a)For how long with the flashlight provide illumination b)How much energy in joules is contained in the battery

How to determine the inital molar concentration of hio3 : A color change in the reaction mixture occured after 40 seconds. A. Assuming 25 drops per mililiter for all solutions, determine the inital molar concentration of HIO3

Determine the fundamentals periods t1and t2 of signals : Given x1(t)=cos(t), x2(t)=sign(pt) and x3(t)=x1(t)+x2(t). (a) Determine the fundamentals periods T1and T2 of signals x1(t) and x2(t). (b) Show that x3(t) is not periodic, which requires T3=k1T1=k2T2 for some integer k1 and k2.

What will be the packages speed when it strikes the ground : Someday in the future, an astronaut on Mars (where gMars = 3.71 m/s^2) might lean over the edge of 25.0-meter-tall spacecraft , What will be the package's speed when it strikes the ground

How to estimate the number of atoms per unit volume : The densities of diamond and germanium are 3.52g/cm3 and 5.32g/cm3 respectively. Estimate the number of atoms per unit volume, nearest neighbor distance, and lattice constant for diamond and Ge.

User Account

All Pages