What fraction of the chemical energy transformed

Reference no: EM13559780

Two 1.50V batteries -- with their positive terminals in the same direction-- are inserted in series into the barrel of a flashlight. Onebattery has an internal resistance of 0.220 , the other aninternal resistance of 0.170 . When the switch isclosed, a current of 600 mA occurs in the lamp.

(a) What is the lamp's resistance?

(b) What fraction of the chemical energy transformed appears asinternal energy in the batteries?

Reference no: EM13559780

Questions Cloud

State the mechanism for the reaction of cl2 : Draw the mechanism for the reaction of Cl2 and 3-ethylpentane with light (there should be three different chloroalkane products in addition to HCl).

What is the total work done on the bucket : An old oaken bucket of mass 6.75kg hangs in a well a the endof a rope. What is the total work done on the bucket

Explain the ion x has 21 electrons identify the element : An unknown element, X, reacts with sulfur to form an ionic compound having the empirical formula (S is sulfur). If the ion X has 21 electrons, identify the element

Uniformly on a square sheet of nonconducting material : A charge of 7 nC is placed uniformly on a square sheet of nonconducting material of side 17 cm in the yz plane. What is the magnitude and direction of the electric field next to the sheet and proximate to the center of the sheet?

What fraction of the chemical energy transformed : Two 1.50V batteries -- with their positive terminals in the same direction-- are inserted in series into the barrel of a flashlight, What fraction of the chemical energy transformed appears asinternal energy in the batteries

Define what amount of heat required to raise the temperature : What is the amount of heat required to raise the temperature of 200.0g of aluminum by 10 degrees celceius

Estimate what is the current in the light bulb : A lightbulb has a resistance of 260 when operating witha potential difference of 130 V. What is the current in the light bulb

Explain what amino acids will interact if the peptide forms : In the following amino acid sequences, what amino acids will interact if the peptide forms an alpha-helix? Do you expect these structures to be stable. Why or why not

Obtain what is the mass of the ion : A singly charged ion of unknown mass moves in a circle ofradius 13.0 cm in a magnetic field of7.7 T.What is the mass of the ion

User Account

All Pages