English
Maharashtra State BoardSSC (English Medium) 10th Standard

Choose the Correct Alternative and Rewrite the Following Sentence. If Three Resistors 2 Ohms, 3 Ohms and 4 Ohms Are Connected in Series, - Science and Technology 1

Advertisements
Advertisements

Question

Choose the correct alternative and rewrite the following sentence.

If three resistors 2 ohms, 3 ohms and 4 ohms are connected in series, then the effective resistance in the circuit will be _______ ohms.

Options

  • 9

  • 6

  • 1

  • 5

MCQ
Advertisements

Solution

9

shaalaa.com
  Is there an error in this question or solution?
2013-2014 (October)

APPEARS IN

RELATED QUESTIONS

In series combination which remains constant?
(a) Voltage
(b) Current
(c) Both current and voltage
(d) Both are variables


Find the equivalent resistance between points A and B


How does the resistance of a pure metal change if its temperature decreases?


Write down an expression for the resistance of a metallic wire in terms of the resistivity.


A p.d. of 4 V is applied to two resistors of 6 Ω and 2 Ω connected in series. Calculate:

(a) the combined resistance
(b) the current flowing
(c) the p.d. across the 6 Ω resistor


You are supplied with a number of 100 Ω resistors. How could you combine some of these resistors to make a 250 Ω resistor?


Draw a V-I graph for a conductor at two different temperatures. What conclusion do you draw from your graph for the variation of resistance of conductor with temperature?


In series combination of resistances ______.


Name the physical quantity that represents the ratio of potential difference and current.

A graph is plotted taking p.d. along y-axis and electric current along x-axis. Name the physical quantity that represents the slope of this graph (Fig.).


What are the SI units of specific resistance?

What do you mean by a rheostat?

What potential difference is needed to drive a current o f 1 A through a 5 Ω resistor?


Choose the correct alternative and rewrite the following:

You are given three equal resistances. In how many combinations can they are arranged?


A given metallic wire of resistance R is doubled on itself. What will be its new resistance?


What material is used for making wire to prepare heating coils? Give a reason.


State expression for Cells connected in parallel.


Two wires of same material and same lengths have radii in the ratio of 2 : 3, Compare their resistances.


The resistance of two resistors joined in series is 8Ω and in parallel is 1.5Ω. Find the value of the two resistances.


If R1 and R2 be the resistance of the filament of 40 W and 60 W respectively operating 220 V, then:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×