Related Questions

For the same secondary voltage, the output voltage from a centre-tap rectifier is ___________ than that of bridge rectifier
A twice
B thrice
C four time
D one-half
All the voltage drops and the source voltage added together in a series circuit is equal to
A The total of the voltage drops
B The source voltage
C Zero
D The total of the source voltage and the voltage drops
The PIV rating of each diode in a bridge rectifier is ___________ that of the equivalent centre-tap rectifier
A one-half
B the same as
C twice
D four times
At Uttara High school each student studies exactly one foreign languages. Three-fifth of the students take Spanish and one-fourth of the remaining students take take German. If all of the others take French, What percent of the students take French?
A 10
B 30
C 20
D 25
The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except
A Armature reaction
B Armature resistance drop
C Field weakening due to armature reaction and armature
D Commutation
কমন গ্রামিটার বর্তনীতে একটি n-p-n ট্রানজিস্টরের সংগ্রাহকে 8 V ব্যাটারী সংযুক্ত আছে। সংগ্রাহক Rt রোধের দুই প্রান্তে বিভব পতন 0.5 V হলে বেস কারেন্ট নির্ণয় কর। [দেওয়া আছে Rt = 800 Ω এবং বর্তনীর α =0.96)(An n-p-n transistor is connected in common emitter configuration in which the collector supply is 8 V. Determine the base current, if the voltage drops across the resistance Re of the collector circuit is 0.5 V. [Rt = 800Ω and α = 0.96])
A 0.625 mA
B 0.000625 mA
C 0.974 mA
D 0.026 mA
E 0.000026 mA
According to Kirchhoff’s voltage law, the algebraic sum of all IR drops and e.m.f. in any closed loop of a network is always
A Negative
B Positive
C Determined by battery e.m.f.
D Zero
The sum of all the voltage drops around a single closed loop in a circuit is zero.
A True
B False
একটি কোষের তড়িৎচালক বল 2 V। এতে যখন 1 A তড়িৎ প্রবাহিত হয় তখন এর বিভব পার্থক্য 1 v হয়। কোষের অভ্যন্তরীণ রোধ (Electromotive force of a cell is 2 V. When 1 A current flows through it, its voltage drops to 1 V. The internal resistance of the cell is)
A 1 Ω
B 2 Ω
C 1 2Ω
D 1 4Ω
একটি কোষের তড়িৎ চালক বল 2 V। এতে যখন 1A তড়িৎ প্রবাহিত হয় তখন এর বিভব পার্থক্য 1 V হয়। কোষের অভ্যন্তরীণ রোধ কত? (Electromotive force of a cell is 2 V. When 1 A current flows, its voltage drops to 1 V. Calculate its internal resistance.)
A 1Ω
B 2 Ω
C 0.5 Ω
D 0.25 Ω

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