Electricity Tes...

What is the approximate resistance setting of a rheostat in which $$650 \  mA$$ of current flows with a $$150 \ V$$ source?

In the circuit shown below in Fig., the value of x if the equivalent resistance between A and B is $$4\, \Omega$$ will be:

Same current flows in each resistor when the two resistors are joined with a battery in :

When two resistors with resistances $$R_1$$ and $$R_2$$ are connected in series, then the total equivalent resistance is 

Equivalent resistance is more than either of the two resistances when they are in:

In the figure the equivalent resistance of the following combination of resistors $$r_1,\, r_2,\, r_3$$ and $$r_4$$, if $$r_1\, =\, r_2\, =\,r_3\, =\, r_4\, =\, 2.0\, \Omega$$, between the points A and B is  

Four resistors each of resistance $$2\, \Omega$$ are connected in parallel. What is the effective resistance?

 The equivalent resistance R of three resistors $$R_1$$, $$R_2$$ and $$R_3$$ joined in parallel is

Two resistances are connected in two configurations- series or parallel. Which  represents the parallel combination? 

You have three resistors of values $$2\, \Omega,\, 3\, \Omega$$, and $$5\, \Omega$$. If they are in parallel ,then the total resistance is :