Spherical Capacitance Calculator Spherical Capacitance Calculator Calculate the capacitance of an isolated sphere. Step 1: Enter Sphere Details Sphere Radius, \(R\) (m) Relative Permittivity, \(\epsilon_r\) For air, \(\epsilon_r \approx 1\). For other materials, use the appropriate value. Calculate Capacitance Calculated Capacitance Capacitance \(C\): Recalculate Capacitance Formula: $$ C = 4\pi\,\epsilon_0\,\epsilon_r\,R $$ where \( \epsilon_0 = […]
Parallel Plate Capacitor Calculator Parallel Plate Capacitor Calculator Calculate the capacitance of a parallel plate capacitor. Step 1: Enter Plate Details Plate Length, \(L\) (m) Plate Width, \(W\) (m) Plate Separation, \(d\) (m) Relative Permittivity, \(\epsilon_r\) For air, \(\epsilon_r \approx 1\); for other materials, use the appropriate value. Calculate Capacitance Calculated Capacitance Capacitance \(C\): Recalculate […]
Circular Disk Capacitance Calculator Circular Disk Capacitance Calculator Calculate the self-capacitance of an isolated circular disk. Step 1: Enter Disk Details Disk Radius, \(R\) (m) Relative Permittivity, \(\epsilon_r\) For air, use \(\epsilon_r \approx 1\). Use a different value for other materials. Calculate Capacitance Calculated Capacitance Capacitance \(C\): Recalculate Capacitance Formula: $$ C \approx 8 \, […]
Multiple Parallel Plates Capacitor Calculator Multiple Parallel Plates Capacitor Calculator Calculate the effective capacitance of a multi-plate capacitor. The calculator uses the formula: $$ C_{eq} = \left(\frac{n-1}{2}\right) \frac{\epsilon_0\, \epsilon_r\, A}{d} $$ \(C_{eq}\): Effective Capacitance (F) \(\epsilon_0\): Vacuum permittivity \(\left(8.854 \times 10^{-12}\,\text{F/m}\right)\) \(\epsilon_r\): Relative permittivity (dielectric constant) \(A\): Plate area (m²) \(d\): Separation between adjacent plates […]
Momentum, Kinetic Energy & de Broglie Wavelength Calculator Momentum, Kinetic Energy & de Broglie Calculator Compute the momentum, kinetic energy, and de Broglie wavelength of a particle. Step 1: Enter Particle Parameters Mass, \(m\) (kg) Example: \(1 \times 10^{-30}\) kg Velocity, \(v\) (m/s) Example: \(1 \times 10^{6}\) m/s Calculate Results Results Momentum, \(p\): Kinetic Energy, […]
Common Gate MOSFET Amplifier Calculator Common Gate MOSFET Amplifier Calculator Calculate the small-signal voltage gain of a common gate (CG) MOSFET amplifier. Step 1: Enter Circuit Parameters Transconductance, \(g_m\) (S) Example: \(0.002\) S (2 mS) Drain Resistor, \(R_D\) (Ω) Example: \(10\,\text{k}\Omega\) Source Resistor, \(R_S\) (Ω) Enter 0 if the source is bypassed. Calculate Voltage Gain […]
Common Drain MOSFET Amplifier Calculator Common Drain MOSFET Amplifier Calculator Calculate the small-signal voltage gain of a common drain (source follower) MOSFET amplifier. Step 1: Enter Circuit Parameters Transconductance, \(g_m\) (S) Example: \(0.002\) S (2 mS) Source Resistance, \(R_S\) (Ω) Enter the effective source resistance (if bypassed, \(R_S\) ≈ 0 and gain ≈ 1) Calculate […]
Capacitance and Inductance from Reactance Calculator Capacitance & Inductance from Reactance Calculator Compute capacitance or inductance by entering the frequency and reactance. Step 1: Enter Circuit Parameters Reactance Type Capacitive ReactanceInductive Reactance Frequency, \(f\) (Hz) Reactance, \(X\) (Ω) Calculate Results Recalculate For Capacitive Reactance: $$ C = \frac{1}{2\pi f X_C} $$ For Inductive Reactance: $$ […]
MOSFET Drain–Gate RD from Iout Calculator MOSFET Drain–Gate RD from Iout Calculator Calculate the required drain resistor \(R_D\) from the desired output voltage and current. Step 1: Enter Circuit Parameters Supply Voltage, \(V_{DD}\) (V) Example: 5 V Desired Output Voltage, \(V_{out}\) (V) Example: 3 V (must be less than \(V_{DD}\)) Output Current, \(I_{out}\) (A) Example: […]
MOSFET Drain–Gate RD Calculator MOSFET Drain–Gate RD Calculator Find the drain resistor \(R_D\) required to achieve a desired output voltage \(V_{out}\) in a diode-connected MOSFET. Step 1: Enter Circuit Parameters Supply Voltage, \(V_{DD}\) (V) Example: 5 V Desired Output Voltage, \(V_{out}\) (V) \(V_{out}\) should be greater than \(V_{TH}\) Threshold Voltage, \(V_{TH}\) (V) Example: 1 V […]