Ohm's Law Multiple choice Question (Electrical Mcqs) and Answer Part 9

                       Electrical Engineering Objective Question and Answer 

          

161- If two resistor with same resistance of  5 kilo ohm , 5 W are connected in series , what will be the combined rating of the resistor 

        (A) 2.5 W 

        (B) 5 W 

        (C) 10 W  

        (D) 25 W

       Answer: (C)

       162- For a carbon composition resistor , which of the following will be suitable value  

        (A) 10,000 ohm , 10 Watt

        (B) 1000,000 ohm , 1 watt

        (C) 5000 ohm , 100 watt 

        (D) 10 ohm , 50 watt

       Answer: (B)

      163- if a battery is connected to a resistor , V= 45 V , I= 1 mA , Which one will be suitable resistance  

        (A) 45 ohm , 10 Watt

        (B) 4.5 ohm , 2 Watt

        (C) 450 kilo ohm , 2 watt

        (D) 45 kilo ohm , 1/4 watt

       Answer: (D)

       164- if a 5 ohm resistance produce heat of 10 cal/sec , what will value of heat produce by 4 ohm   

        (A) 1 cal/sec

        (B) 2 cal/sec

        (C) 3 cal/sec

        (D) 4 cal/sec

       Answer: (B)

      165- If a carbon resistance has color coding as fallows , yellow , violet, orange and silver strips from lest to right , what will be the value of resistance  

        (A) 470 ohm ± 10%

        (B) 47 ohm ± 10%

        (C) 740 ohm ± 50%

        (D) 74 ohm ± 5%

       Answer: (B)

      166- If a carbon resistance has color coding as fallows , green , black , gold and silver strips from lest to right , what will be the value of resistance  

        (A) 50 ohm ± 10%

        (B) 47 ohm ± 10%

        (C) 740 ohm ± 50%

        (D) 74 ohm ± 5%

       Answer: (C)
      
       167- If a resistor having value of 1000 ohms and ± 10% tolerance , actual resistance will be 

        (A) 990 ohm and 1010 ohm

        (B) 900 ohm and 1100 ohm

        (C) 1000 ohm and 1100 ohm

        (D) 900 ohm and 1000 ohm

       Answer: (B)

        168- if a number 5 is for a carbon color coded resistor, its color is 

        (A) Green

        (B) Black

        (C) Orange 

        (D) Gray

       Answer: (A)

       169- Darker color resistor have value of 

        (A) 1

        (B) 5

        (C) 8

        (D) 9

       Answer: (A)

      170- if fourth strip is not present in the color coded resistor 

        (A) the resistor is highly accurate 

        (B) the resistor is defective 

        (C) the resistor does not contain carbon 

        (D) the tolerance limit is ± 20%

       Answer: (D)

      

        171- If a carbon resistance has color coding as fallows , yellow , violet , orange and gold strips from lest to right , what will be the value of resistance  

        (A) 470 ohm ± 5%

        (B) 47 kilo ohm ± 5%

        (C) 47 mega ohm ± 5%

        (D) 4700 ohms ± 10%

       Answer: (B)

         172- The silver strip gives how many tolerance  

        (A) +5%

        (B) +10%

        (C)  ± 5%

        (D)  ± 10%

       Answer: (D)

      173- Which will have negative charge ? 

        (A) Electron 

        (B) Iron

        (C) Hole

        (D) Neutron 

       Answer: (B)

     174- which pair will have high equivalent resistance  

        (A) 10 kilo ohm and 25 kilo ohm

        (B) 1 kilo ohm , 2 kilo ohm and 3 kilo ohm

        (C) Two 500 kilo ohm resistors 

        (D) Four 40 kilo ohm and two 10 kilo ohm resistors.

       Answer: (C)

       175- In a series /parallel ,  if  a certain parameter of a circuit have total value as shown below ,the parameter will be 
       
                    X = X1 +X2 +X3+X4 + ------

       
         (A) resistance  

        (B) current 

        (C) voltage

        (D) power 

       Answer: (D)

      176- Consider a ohm meter having resistance of 12000 ohms for 150 scale. what will be the power if it is connected across 125 volt circuit .

        (A) 0.0013 W

        (B) 0.013 W

        (C) 0.13 W

        (D) 1.3 W

       Answer: (D)

      177- Materials having conductivity in between the metals and insulators are   

        (A) Thermistors 

        (B) Varistors 

        (C) semi-conductors 

        (D) variable resistors 

       Answer: (C)

     178- 

       Answer: (D)

      179-The current I flowing through the circuit is  

       

        (A) 1/45 ohm

        (B) 1/15 A

        (C) 1/10 A

        (D) 1/5 A

       Answer: (C)

     180- which electrolyte is used for Nickel cadmium alkali cell is,    

        (A) Sulphur acid

        (B) potassium hydroxide 

        (C) zinc chloride 

        (D) ammonium chloride  

       Answer: (B)