Current Electricity
A wire of resistor $$R$$ is bent into a circular ring of radius $$r$$. Equivalent resistance between two points $$X$$ and $$Y$$ on its circumference, when angle $$XOY$$ is $$\alpha$$, can be given by
Find the current in each resistor in the circuit shown below :
$$R_1 = 6 \,ohm , R_2 = 4 \,ohm , V = 24 \,V$$
The two resistances are connected in parallel.
Current across $$R_1 = I_1 = V/R_1 = 24/6 = 4 \,amp$$
Current across $$R_2 = I_2 = V/R_2 = 24/4 = 6 \,amp$$
A wire of resistor $$R$$ is bent into a circular ring of radius $$r$$. Equivalent resistance between two points $$X$$ and $$Y$$ on its circumference, when angle $$XOY$$ is $$\alpha$$, can be given by
Write true or false for the following statements : If resistance are connected in parallel , the voltage across each remains the same.
The effective resistance of two resistor in parallel is $$\dfrac{12}{7}\Omega$$. If one of the resistors is disconnected the resistance becomes $$4\Omega$$. The resistance of the other resistor is
If $$0.2 \ \Omega, 0.3 \ \Omega, 0.4 \ \Omega, 0.5 \ \Omega,$$ and $$12 \ \Omega$$ resistors are connected to a $$9 \ V$$ battery in parallel, what will be the current through the $$12 \ \Omega$$ resistor?
In the circuit given below, find the total current drawn from the battery: