Electricity and Electronics
posted by jackie .
A circuit contains twodevices that are connected in parallel. If the resistance of one of these devices is 12 ohms and the resistance of the other devices is 4 ohms, the total resistance of the two devices is?
1/R = 1/R1 + 1/R2
You have R1 and R2. Solve for R.
It will be less than the least R in the parallel circuits.

the magnitude of the voltage induce in a conductor moving through a stationary magnetic field depends on the
Respond to this Question
Similar Questions

science
there are three sources of resistance in a parallel ciruit. Two of them are rated at 20ohms, the other at ohms. What is the curuit's total resistance? 
Physical Science
Hello, Can someone tell me if I have the correct answer? 
SCIENCE
THERE ARE THREE SOURCES OF RESISTANCE IN A PARALLEL CIRCUIT,S . TWO OF THEM ARE RATED AT 20 OHMS THE OTHER AT 10 OHMS WHAT IS THE CIRCUIT,S TOTAL RESISTANCE. 
Science
There Are Three Resistance In A Parallel Circuit. Two Of Them Are Rated At 20 Ohms, The Other At 10 Ohms. What Is The Circuit's Total Resistance? 
science
There are three sources of resistance in a parallel circuit. Two of them are rated at 20 ohms, the other at 10 ohms. What is the circuits total resistance? 
Math
The total resistance of two circuits in parallel is 15 ohms and one circuit has five times the resistance of the other, find the resistance of each circuit. Use 1/R=1/R1+1/R2. R1 and R2 are two individual resistances. a)Find the smaller … 
Algebra
Two lamps can be connected to a battery in a circuit in series or in parallel. You can calculate the total resistance RT (t is down from r) in a circuit if you know the resistance in each lamp. Resistance is measured in ohms. For a … 
Algebra
Two lamps can be connected to a battery in a circuit in series or in parallel. You can calculate the total resistance RT (t is down from r) in a circuit if you know the resistance in each lamp. Resistance is measured in ohms. For a … 
Physics
Two identical resistors are connected in parallel across a 26V battery, which supplies them with a total power of 9.8 W. While the battery is still connected, one of the resistors is heated so that its resistance doubles. The resistance … 
Electricity and Electronics
A complete circuit contains two parallelconnected devices and a generator for providing the electromotive force. The resistance of the first device is 12 ohms, the resistance of the second device is 4 ohms, and the voltage developed …