**DC Circuit MCQ**

Job Interview Exam Higher Study Admission Questions
Answers part1

**1.**Current is a

**Scalar**.

**2.**

**A d.c. circuit usually has**

**Resistance**as the load.

**3.**

**The purpose of load in an electric circuit is to**

**utilize electrical energy**.

**4.**

**Electrical appliances are not connected in series because**

**appliances have different current ratings**.

**5.**Electrical appliances are connected in parallel because

**makes the operation of appliances independent of each other.**

**6.**When cells are arranged in parallel

**the current capacity increases.**

**7.**When the numbers of resistances are connected in parallel, the total resistance is

**less than the smallest resistance.**

**8.**A cell of e.m.f.

**E**is connected across a resistance

**r**. The potential difference between the terminals of the cell is found to be

**V**. The internal resistance of the cell is

**(E-V/V)r.**

**9.**Five cells each of e.m.f.

**E**and internal resistance

**r**are connected in series. If due to oversight, one cell is connected wrongly, then the equivalent e.m.f. and internal resistance of the combination are

**3E and 5r.**

**10.**A wire has a resistance of

**12 ohms.**It is bent in the form of a circle. The effective resistance between the two points on any diameter of circle is

**3ohms.**

6||6= (6*6)/(6+6)= 36/12=

**3**