Related Questions

An uncharged conductor is placed near a charged conductor, then
A the uncharged conductor gets charged by conduction
B the uncharged conductor gets charged by induction and then attracted towards the charging body
C the uncharged conductor is attracted first and then charged by induction
D it remains as such
The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is
A 50 %
B 60 %
C 100 %
D 150 %
Resistance of an electrical conductor is proportional to its (where, L = length and A = cross-sectional area of the conductor)
A A
B L
C A2
D Both A & B
Strain gage uses an electrical conductor wire, which when elastically stretched increases in length and reduces in diameter. Both these dimensional changes result in __________ in the electrical resistance of the wire.
A No change
B Decrease
C Increase
D Exponential decrease
The local charges a monthly service charge of $ 3.50 plus 8 cents for each check . Last October, Michelle's total charges were $ 5.58 How many checks did she write ?
A 22
B 23
C 25
D 26
To produce an old photograph, a photographer charges x dollars to make a negative, 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?
A 3
B 3.5
C 4
D 4.5
To produce an old photograph, a photographer charges x dollars to make a negative 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?
A 3
B 3.5
C 4
D 4.5
3 m দুরত্বে অবস্থিত দুটি বিন্দু চার্জের মধ্যে 0.075 N বল কাজ করে। চার্জ দুটির সর্বমোট চার্জের পরিমান 20 μC হলে চার্জ দুটির মান কত?(Two point charges that are at 3m apart experience a force of 0.075 N. If the value of their combined charge is 20 µC, what are the individual values of the charges?)
A 15 μC and 5 μC
B 203μc and 203μc
C 209μc and 209μc
D 10 μC and 10 μC
E 12 µC and 8 μC
Which of the following is a good conductor of heat but bad conductor of electricity ?
A Asbestos
B Celluloid
C Straw Board
D Mica
When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon
A The value of current
B The weight of the conductor
C The direction of the conductor
D None of the above

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