Kirchoff's Law-DPP-12 (ISC)

Consider the circuit shown in the figure. The current is equal to

• 5 amp

• 3 amp

• -3 amp

• -5/6 amp

Eels are able to generate current with biological cells called electroplaques. The electroplaques in an eel are arranged in 100 rows, each row stretching horizontally along the body of the fish containing 5000 electroplaques. The arrangement is suggestively shown below. Each electroplaques has an emf of 0.15 V and internal resistance of 0.25 W The water surrounding the eel completes a circuit between the head and its tail. If the water surrounding it has a resistance of 500 W, the current an eel can produce in water is about

• 1.5 A

• 3.0 A

• 15 A

• 30 A

In the given current distribution what is the value of I

• 3A

• 8 A

• 2A

• 5A

To draw maximum current from a combination of cells, how should the cells be grouped

• Series

• Parallel

• Mixed

• Depends upon the relative values of external and internal resistance

Find out the value of current through 2W resistance for the given circuit

• 5 A

• 2 A

• Zero

• 4 A

An energy source will supply a constant current into the load if its internal resistance is

• Zero

• Non-zero but less than the resistance of the load

• Equal to the resistance of the load

• Very large as compared to the load resistance

The current in the arm CD of the circuit will be

• $i_1+i_2$

• $i_2+i_3$

• $i_1+i_3$

• $i_1-i_2+i_3$