set 5 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 9 EXERCISES
-
Top Physics GK questions and answers to competitive exam »
-
Top Physics MCQ Questions And Answers IBPS Clerk PO RRB »
-
Physics IBPS Important Objective Questions And Answers »
-
Top Physics Electric Current NCERT Questions And Answers »
-
Physics Current Electricity MCQ Questions For Board Exams »
-
240+ Most Important Physics GK MCQ Questions and Answers »
-
New General Science Physics Mcq Questions, Practice Quiz »
-
199+ General Science Physics GK Questions Answers PDF »
-
Top 250+ Physics GK Questions Answers Quiz, PDF for SSC »
The following question based on electric current and magnetism topic of general science mcq
(a) high specific resistance and low melting point
(b) low specific resistance and low melting point
(c) high specific resistance and high melting point
(d) low specific resistance and high melting point
The correct answers to the above question in:
Answer: (c)
A heating wire should be such that it produces more heat when current is passed through it and also does not melt.
It will be so if it has high specific resistance and high melting point.
Discuss Form
Read more physics gk Based General Science Questions and Answers
Question : 1
Consider the following statements :
- An ammeter should have low resistance
- An ammeter should have high resistance
- A voltmeter should have low resistance
- A voltmeter should have high resistance
a) 2 and 3
b) 1 and 4
c) 1 and 3
d) 2 and 4
Answer »Answer: (b)
Ammeter is connected in series within the circuit. Therefore, the net resistance of the circuit increases and current to be measured decreases, so ammeter should have low resistance.
On the other hand voltmeter is connected in parallel within the circuit. This changes the overall current in the circuit and hence, the potential difference to be measured is also changed to minimise the error, so the equivalent resistance of the voltmeter should be large.
Question : 2
p-n junction diode works as a insulator, if connected
a) in forward bias
b) in reverse bias
c) to A.C.
d) None of these
Answer »Answer: (b)
In reverse bias no current flows.
Question : 3
An object is kept 5 cm in front of a concave mirror of focal length 15 cm. What will be the nature of the image?
a) Real, not magnified
b) Virtual, not magnified
c) Virtual, magnified
d) Real, magnified
Answer »Answer: (c)
Question : 4
The part of a transistor which is most heavily doped to produce large number of majority carriers is
a) base
b) collector
c) emmiter
d) can be any of the above three
Answer »Answer: (c)
Question : 5
When current is passed through an electric bulb, its filament glows, but the wire leading current to the bulb does not glow because
a) the leading wire has more resistance than the filament
b) the leading wire has less resistance than the filament
c) less current flows in the leading wire as compared to that in the filament
d) filament has coating of fluorescent material over it
Answer »Answer: (b)
Question : 6
The filament of an electric bulb is of tungsten because
a) it is cheaper
b) its melting point is high
c) its resistance is negligible
d) filament is easily made
Answer »Answer: (b)
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
100+ Quadratic Equation Questions Answers PDF for Bank
Quadratic Equation multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
IBPS Aptitude Linear Equations MCQ Questions Answers PDF
Linear equations multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
New 100+ Compound Interest MCQ with Answers PDF for IBPS
Compound Interest verbal ability questions and answers solutions with PDF for IBPS RRB PO. Aptitude Objective MCQ Practice Exercises all competitive exams
Continue Reading »
100+ Mixture and Alligation MCQ Questions PDF for IBPS
Most importantly Mixture and Alligation multiple choice questions and answers with PDF for IBPS RRB PO. Aptitude MCQ Practice Exercises all Bank Exams
Continue Reading »