physical science
posted by queen .
the headlamp and 2 identical tail lamp are conected in paralel to batery with unknown internal resistancs.headlamp resistance wth 2.4 ohm controld by switch s1.the tail lamps are controled by s2.the resistance of the connection wired may be ignored. questions:1.determine the emf of battery. 2.with switch s1 closed,calculate:current through the headlamp.3.internal resistance,r,of the battery.4.both switch are closed.the battery delivers a current of 6A during this period.calculate the resistance of each tail lamp

Check and make sure you included all of
the INFO.
Respond to this Question
Similar Questions

physics (please check)
A total resistance of 3 ohms is to be producd by combining an unknown resistor R with a 12 ohm resistor. What is the value of R and how is it connected to the 12 ohm resistor a) 4.0 ohm parallel b) 4.0 ohm in series c) 2.4 ohm in parallel … 
physics.
please check my answers. when a lamp is plugged into a 120 V socket, each coulomb of charge that flows in the circuit is raised to a potential engergy of 120 joules? 
Physics
Is the answer to this 4? If the filament resistance in an automobile headlamp is 3 ohms, how many amps does it draw when connected to a 12volt battery? 
Physics
A circuit contains sic 60W lamps with a resistance of 240ohm each and a 10.0ohm heater connected in parallel. The voltage across the circuit is 120 V. Find the current in the circuit for the following situations:::: a. four lamps … 
physics
What is the total resistance in a parallel circuit with a 10 ohm lamp and a 15 ohm lamp? 
physics
Three small lamps are connected to a 24 V battery, as shown in the ﬁgure. Assume the battery is ideal (has no internal resistance and given in the ﬁgure) and the connecting wires have no resistance. Unlike most real bulbs, … 
physics
a battery has an e.m.f of 6 volts and an internal resistance of 0.4 ohm.it is connected to a 2.6 ohm resistor through a SPST{single pole,single throw}switch.when the switch is closed,the potential difference between the terminals of … 
physics
Two 1.30V batterieswith their positive terminals in the same directionare inserted in series into the barrel of a flashlight. One battery has an internal resistance of 0.182Ω, the other an internal resistance of 0.139Ω. … 
Physical science
two forces of 5N and 12N respectively act on the same point.show how you would determine the magnitude of the resultant by using the tail to head and tail to tail methods and Pythagoras theorem 
physical science
two forces of 60 and 80 newton respectively act simultaneously at the point ...sketch and determine their resultant force using tail to tail method and tail to tail method