নিম্নোক্ত এসি ভোল্টেজ একটি 6 $Ω$ রোধের প্রান্তদ্বয়ে প্রয়োগ করা হলো। রোধের গড় পাওয়ার অপচয় বের কর। /6 $Ω$ রেজিস্টরের আড়াআড়িতে প্রদত্ত এসি ভোল্টেজ প্রয়োগ করলে রেজিস্টর দ্বারা শোষিত পাওয়ার এর পরিমাণ কত হবে? (The following AC voltage is applied to the terminals of a 6 Ω resistor. What is the average power dissipated in the resistor.)

Bangladesh-China Renewable Energy Company LTD (BCRECL) - সহকারী প্রকৌশলী (ইইই) (01-11-2025) ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

Created: 2 months ago | Updated: 2 months ago

Updated: 2 months ago

Ans :

$V_{r m s}^{2} = \frac{1}{100}$ $[\int_{0}^{25} 5^{2} d t + \int_{25}^{50} 10^{2} d t + \int_{50}^{75} {(- 10)}^{2} d t + \int_{75}^{100} {(- 5)}^{2} d t +]$

$V_{r m s}^{2} = \frac{1}{100}$ [25 $\times$ (250)+100(50-25)+100(75-50) + 25(100-75)]

$V_{r m s}$ = $\sqrt{\frac{1}{100} \times (625 + 2500 + 2500 + 625)}$

V_rms = 7.90 Volt

$∴$ $P = \frac{7 . 90^{2}}{6} = 10.42$ Watt

2 months ago

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নিম্নোক্ত এসি ভোল্টেজ একটি 6 $Ω$ রোধের প্রান্তদ্বয়ে প্রয়োগ করা হলো। রোধের গড় পাওয়ার অপচয় বের কর। /6 $Ω$ রেজিস্টরের আড়াআড়িতে প্রদত্ত এসি ভোল্টেজ প্রয়োগ করলে রেজিস্টর দ্বারা শোষিত পাওয়ার এর পরিমাণ কত হবে? (The following AC voltage is applied to the terminals of a 6 Ω resistor. What is the average power dissipated in the resistor.)

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ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

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Find currents I and I₁ in the following circuit.

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৪৫ তম বিসিএস লিখিত ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

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Determine the Thevenin's equivalent circuit at terminal X-Y of the following circuit.

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৪৫ তম বিসিএস লিখিত ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

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3 State maximum power transfer theorem.

Created: 2 years ago | Updated: 7 months ago

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Maximum Power Transfer Theorem :

In electrical engineering, the maximum power transfer theorem states that, to obtain maximum external power from a power source with internal resistance, the resistance of the load must equal the resistance of the source as viewed from its output terminals.

৪৫ তম বিসিএস লিখিত ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

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If the switch in the following circuit opens at t = 0, find v(t) for t≥ 0 and the initial energy stored in the capacitor.

Created: 2 years ago | Updated: 7 months ago

Updated: 7 months ago

For t<0, the switch is closed.

Capacitor acts as open to DC.

Voltage across the capacitor,

v(0^-)= {(12||4)×V}÷{(12||4)+6} = 8VFor t=0, the switch is opened,Voltage across the Capacitor cannot change instantaneously,So, v(0^-)= v(0) = 8VAt t>0, The capacitor is discharging.R_th= (12||4) = 3 ohmC= 1/6 FTime constant, Π = R_th×C = 0.5 So, v(t) = v(0)e^-t/Π = 8e^-t/0.5=8e^-2tV (Ans.)

৪৫ তম বিসিএস লিখিত ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

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Show that a series RL circuit is a low pass filter if the output is taken across the resistor. Calculate the cut-off frequency (f_c) if L = 2 mH and R = 10 kΩ.

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৪৫ তম বিসিএস লিখিত ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

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Compute the average and effective values of the square voltage wave shown in the following figure.

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৪৫ তম বিসিএস লিখিত ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

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ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

Related Question

1
Find currents I and I₁ in the following circuit.

2
Determine the Thevenin's equivalent circuit at terminal X-Y of the following circuit.

3 State maximum power transfer theorem.

Maximum Power Transfer Theorem :

4
If the switch in the following circuit opens at t = 0, find v(t) for t≥ 0 and the initial energy stored in the capacitor.

5
Show that a series RL circuit is a low pass filter if the output is taken across the resistor. Calculate the cut-off frequency (f_c) if L = 2 mH and R = 10 kΩ.

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Hi, আমি SATT AI!

ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স ইঞ্জিনিয়ারিং (EEE)

Related Question

1 Find currents I and I1 in the following circuit.

2 Determine the Thevenin's equivalent circuit at terminal X-Y of the following circuit.

3 State maximum power transfer theorem.

Maximum Power Transfer Theorem :

4 If the switch in the following circuit opens at t = 0, find v(t) for t≥ 0 and the initial energy stored in the capacitor.

5 Show that a series RL circuit is a low pass filter if the output is taken across the resistor. Calculate the cut-off frequency (fc) if L = 2 mH and R = 10 kΩ.

6 Compute the average and effective values of the square voltage wave shown in the following figure.

Related Question

Promotion

Satt AI

Hi, আমি SATT AI!

1
Find currents I and I₁ in the following circuit.

2
Determine the Thevenin's equivalent circuit at terminal X-Y of the following circuit.

4
If the switch in the following circuit opens at t = 0, find v(t) for t≥ 0 and the initial energy stored in the capacitor.

5
Show that a series RL circuit is a low pass filter if the output is taken across the resistor. Calculate the cut-off frequency (f_c) if L = 2 mH and R = 10 kΩ.

6
Compute the average and effective values of the square voltage wave shown in the following figure.